Name:
Date:
Biology Holiday Pack 1st Semester 2011
Question 1 of 50
Molly is investigating the staining power of liquid fabric dye dissolved in water at different
concentrations. She mixed a dye solution containing 9 ml water and 1 ml liquid fabric dye and
labeled it Solution A. She removed 10% of Solution A and diluted it with water to equal 10 ml,
and labeled it Solution B. She repeated this procedure two more times to produce solutions in
the concentrations below:
Solution A: 90% water, 10% fabric dye
Solution B: 99% water, 1% fabric dye
Solution C: 99.9% water, 0.1% fabric dye
Solution D: 99.99% water, 0.01% fabric dye
Which of the following would produce the most precise measurements in Molly's investigation?
A. 15 ml pipette marked at 1 ml intervals
B.
100 ml pipette marked at 5 ml intervals
C.
100 pipette marked at 10 ml intervals
D.
1000 pipette marked at 100 ml intervals
Question 2 of 50
Research into the human genome has produced a highly detailed picture of the amount of
genetic variation among human beings. Geneticists are confident that humans are about 99.9%
genetically identical, meaning that all of the variation among people is produced by about one
tenth of one percent of our genome.
Why are geneticists confident about this conclusion?
A. Genomes are simple to compare because there are only a few possible
sequences that can be made from the nucleotide bases.
B.
Genetic testing has been conducted by numerous scientific teams that reached
the same conclusion.
C.
People in the same family often look alike and have similar health histories.
D.
DNA contain genes that have been passed down through hundreds of
generations.
Question 3 of 50
Molly is investigating the staining power of liquid fabric dye dissolved in water at different
concentrations. She mixed a dye solution containing 9 ml water and 1 ml liquid fabric dye and
labeled it Solution A. She removed 10% of Solution A and diluted it with water to equal 10 ml,
and labeled it Solution B. She repeated this procedure two more times to produce solutions in
the concentrations below:
Solution A: 90% water, 10% fabric dye
Solution B: 99% water, 1% fabric dye
Solution C: 99.9% water, 0.1% fabric dye
Solution D: 99.99% water, 0.01% fabric dye
Molly placed a drop of each solution on a small swatch of silk fabric to test the staining power
of each solution. The results of the stain tests supported Molly's hypothesis.
How could Molly evaluate the accuracy of her results?
A. She could repeat the investigation using smaller units.
B.
She could repeat the investigation using larger units.
C.
She could compare her test swatches to swatches produced by the dye
manufacturer.
D.
She could test the dye solutions on swatches of a different type of fabric.
Question 4 of 50
Jules and Jayne were investigating the relationship between mass and density by measuring the
mass and volume of several materials.
Which investigation would have the greatest precision?
A. An investigation that measures mass in milligrams and volume in milliliters.
B. An investigation that measures mass in centigrams and volume in centiliters.
C. An investigation that measures mass in grams and volume in liters.
D. An investigation that measures mass in kilograms and volume in kiloliters.
Question 5 of 50
Each year hundreds of papers about scientific investigations are produced, but many of the
papers will not be published in scientific journals.
How do the editors at scientific journals decide which papers to publish?
A. Respected scientists review the papers that are submitted and recommend the best
for publication.
B. Journal editors hold a lottery where each paper submitted has an equal chance to
be selected at random.
C. Papers are included in journal in the order that they are received until their page
limit is reached.
D. Journal editors check their monthly budget to decide which papers they can afford
to publish.
Question 6 of 50
Jules and Jayne were investigating the relationship between mass and density by measuring the
mass and volume of several materials.
How should Jules and Jayne evaluate the accuracy of their data?
A. Convert their data into smaller units of measurement.
B. Ask other students to repeat their investigation.
C. Look up the accepted densites of the materials used in their investigation.
D. Look up the chemical formulas of the materials used in their investigation.
Question 7 of 50
Data from experimental investigations can cause scientific theories to be revised.
Which of the following must occur before the results of an investigation are used to revise an
existing theory?
A. The scientific community must decide who receives credit for the theory once it has
been revised.
B. Researchers must determine that other scientific theories will not be affected by the
revision.
C. Everyone working on the investigative team must provide their scientific
credentials.
D. The experimental results must be obtained by other researchers who have repeated
the investigation.
Question 8 of 50
Molly is investigating the staining power of liquid fabric dye dissolved in water at different
concentrations. She mixed a dye solution containing 9 ml water and 1 ml liquid fabric dye and
labeled it Solution A. She removed 10% of Solution A and diluted it with water to equal 10 ml,
and labeled it Solution B. She repeated this procedure two more times to produce solutions in
the concentrations below:
Solution A: 90% water, 10% fabric dye
Solution B: 99% water, 1% fabric dye
Solution C: 99.9% water, 0.1% fabric dye
Solution D: 99.99% water, 0.01% fabric dye
Molly tested the staining power of the solutions by placing a drop of each on four small
swatches of silk fabric. Solution A produced the darkest stain and Solution D produced the
lightest stain on the silk swatches.
Which statement best explains these results?
A. There are fewer molecules of fabric dye in Solution A than there are in Solution
D.
B.
There are more molecules of fabric dye in Solution A than there are in Solution
D.
C.
The water dissolved the fabric dye more quickly in Solution A than it did in
Solution D.
D.
The water dissolved the fabric dye more slowly in Solution A than it did in
Solution D.
Question 9 of 50
Kaylee investigated the relationship between an object's mass and the rate at which the object
fell to the ground when dropped from a height. To conduct the investigation, she dropped
objects of different masses from a height of 40 feet and measured the amount of time it took
each one to hit the ground.
Kaylee concluded that the mass of an object is not an important factor in the rate at which an
object falls.
Which statement supports Kaylee's conclusion?
A. Heavy objects hit the ground before light objects because Earth's gravity
accelerates objects at a rate of 32 feet per gram2.
B.
Most of the objects hit the ground about 1 second after they were dropped
because Earth's gravity accelerates objects at a rate of 32 feet per second2.
C.
The time it took each object to hit the ground was measured in seconds and
divided by the distance the object fell in feet to calculate the rate at which each
object fell.
D.
The mass of each object was measured in grams and recorded in a notebook
before the object was dropped.
Question 10 of 50
Jules and Jayne were investigating the relationship between mass and density by measuring the
mass and volume of several materials.
Jules suggested measuring the volume of their solid materials by immersing them in a graduated
cylinder containing water, and measuring the change in the water level. Jayne agreed that this
was a good idea for measuring some of the solid materials, but concluded that it would not
produce accurate measurements for all of the solids.
Which statement supports Jayne's conclusion?
A. A solid with a density that is greater than 1 gram per cubic centimeter will float
on the surface of the water.
B.
A solid with a density that is less than 1 gram per cubic centimeter will float on
the surface of the water.
C.
A solid with a temperature that is less than 25 °C will float on the surface of the
water.
D.
A solid with a temperature that is more than 25 °C will float on the surface of
the water.
Question 11 of 50
Jules and Jayne were investigating the relationship between mass and density by measuring the
mass and volume of several materials.
Which of the following would introduce a bias to their investigation that could affect their
results?
A. recording measurements for each material in a notebook
B. checking the balance scale by weighing a known mass
C. converting mass to grams and volume to cubic centimeters
D. rounding mass and volume measurements to the nearest whole number
Question 12 of 50
Molly is investigating the staining power of liquid fabric dye dissolved in water at different
concentrations. She mixed a dye solution containing 9 ml water and 1 ml liquid fabric dye and
labeled it Solution A. She removed 10% of Solution A and diluted it with water to equal 10 ml,
and labeled it Solution B. She repeated this procedure two more times to produce solutions in
the concentrations below:
Solution A: 90% water, 10% fabric dye
Solution B: 99% water, 1% fabric dye
Solution C: 99.9% water, 0.1% fabric dye
Solution D: 99.99% water, 0.01% fabric dye
Molly tested the staining power of the solutions by placing a drop of each on four small
swatches of silk fabric. She allowed the fabric swatches to completely dry before comparing the
stains on each swatch.
Which of the following could introduce a bias to the investigation that could affect the results?
A. drying each swatch under the same conditions
B.
placing an equal amount of dye on each swatch
C.
using distilled water in all of the dye solutions
D.
testing each solution on a different type of fabric
Question 13 of 50
Chris investigated the relationship between the pH of the water, the level of nitrates, and the
growth of algae in freshwater ponds. He took water samples from four different ponds and
measured their pH, nitrate level, and algae concentrations.
Which of the following could introduce a bias to the investigation that could affect his results?
A. testing the water samples immediately after collection
B.
using a pH meter to determine the pH of each sample
C.
collecting water samples from several places in each pond
D.
collecting water samples from the shady areas in each pond
Question 14 of 50
Kaylee investigated the relationship between an object's mass and the rate at which the object
fell to the ground when dropped from a height. To conduct the investigation, she dropped
objects of different masses from a height of 40 feet and measured the amount of time it took
each one to hit the ground.
Which of the following would introduce a bias to Kaylee's investigation that could affect the
results?
A. using a stop watch to measure the time each object takes to hit the ground
B.
setting up a video camera to record the investigation
C.
testing objects with very different shapes and surface areas
D.
testing objects that have very similar shapes and surface areas
Question 15 of 50
What is the name for the sequence of nucleotide base pairs in an individual's DNA?
A. genotype
B. phenotype
C. meiosis
D. mitosis
Question 16 of 50
In peas, purple flower color is dominant to white flower color. If a plant heterozygous for
purple flowers is crossed with one that is homozygous for white flowers, what is the genotype
of the box labeled 4?
A. PP
B.
pp
C.
purple
D.
white
Question 17 of 50
A cross between a man with type A blood and a woman with type B blood is shown below.
What is the likelihood that these two parents will produce a child with type O blood?
A. 0%
B. 25%
C. 50%
D. 100%
Question 18 of 50
The Punnett square below shows a cross between two black rabbits.
If 50% of the offspring have the allele combination BB and 50% have the allele combination
Bb, what is the genotype of the unknown parent?
A. not enough information
B. bb
C. Bb
D. BB
Question 19 of 50
A cross between two black, running mice is shown below.
What fraction of the offspring expected from this cross would be black, waltzing mice?
A. 3/16
B. 1/16
C. 9/16
D. 4/16
Question 20 of 50
In peas, tall plants are dominant over short and purple flowers are dominant over white. The
punnett square below shows a cross between two plants heterozygous for both tall plants and
purple flowers. What are the chances of getting a plant that is short with white flowers from this
cross?
A.
B.
C.
D.
Question 21 of 50
Rough coat in guinea pigs is dominant over smooth and short hair is dominant over long. If two
guinea pigs heterozygous for rough, short hair are crossed, what fraction of their offspring
would also be heterozygous for both traits?
A.
B.
C.
D.
Question 22 of 50
Rubbing a substance on unglazed brown paper will indicate the presence of a lipid if a shiny,
translucent spot is left. From the data in the diagram below, which substance(s) contain(s)
lipids?
A. 1 only
B. 2 only
C. 1 and 3
D. 2 and 4
Question 23 of 50
Students were testing for the presence of certain biomolecules in lab. When iodine was added to
test substance A, the substance turned a blue-black color. This color change indicates the
presence of what substance?
A. Starch
B.
Protein
C.
Nucleic Acid
D.
Lipid
Question 24 of 50
When cheese is rubbed on a brown paper bag, a transluscent, shiny spot can be seen. This test
would show the presence of what organic compound?
A. carbohydrate
B.
lipid
C. protein
D. calorie
Question 25 of 50
Ben and Brandon were testing unknowns for the presence of biomolecules in lab. When adding
iodine to their test tubes, Ben accidently spilled iodine on Brandon's t-shirt. The spot
immediately changed from the golden color of iodine to a dark black color. Which biomolecule
was present in Brandon's shirt?
A. lipid
B.
protein
C.
nucleic acid
D.
starch
Question 26 of 50
Zach is eating potato chips and leaves the crumbs in the bottom of his brown paper lunch bag.
When he gets home he notices a shiny translucent spot on the bag where the crumbs have been.
Which biomolecule left this spot on his lunchbag?
A. a nucleic acid
B.
a protein
C.
a carbohydrate
D.
a lipid
E.
The shiny translucent spot was a result of fat.
Question 27 of 50
The two major functions of DNA are
A. replication and transcription.
B. replication and protein synthesis.
C. transcription and protein synthesis.
D. replication and mitosis.
Question 28 of 50
The DNA in the diagram is replicated before mitosis begins. While being replicated, a mistake
occurred. What type mistake is represented by the (*)?
A. substitution
B. addition
C. deletion
D. inversion
Question 29 of 50
DNA has two major functions. Which major function of DNA is shown in the diagram below?
A. replication
B. translation
C. transcription
D. protein synthesis
Question 30 of 50
Inside cells, mRNA copy the nucleotide sequences located in the DNA. The mRNA carry these
copies to ribosomes where tRNA use the sequences to produce an important substance.
What substance is produced by this process?
A. sugar
B.
lipid
C.
water
D.
protein
Question 31 of 50
Which molecules determine the types of protein that are produced inside a cell?
A. mRNA and tRNA
B. ADP and ATP
C. O2 and CO2
D. LDL and HDL
Question 32 of 50
Cells perform many important processes to help maintina life. Which important cellular
processes is depicted in the above diagram?
A. transcription
B. respiration
C. replication
D. translation
Question 33 of 50
In a monohybrid cross between 2 mice heterozygous for fur color, the phenotypic ratio among
offspring is 3 with black fur to 1 with brown fur. Which trait is dominant?
A. not enough information given to determine
B.
mixture of brown and black fur
C.
brown fur
D.
black fur
Question 34 of 50
Which of Mendel's principles says that when gametes are formed in diploid organisms, the
segregation of each gene pair does not affect the segregation of other gene pairs as long as the
gene pairs are on separate chromosomes?
A. Principle of Independent Assortment
B.
Principle of Dominance and Recessiveness
C.
Principle of Segregation
D.
Principle of Heredity
Question 35 of 50
When Mendel crossed a purple-flowered plant with the genotype Ww and a white-flowered
plant with the genotype ww, the result was 50% purple-flowered plants and 50% white-flowered
plants.
Which of Mendel's Laws does this support?
A. Law of Independent Assortment
B.
Law of Segregation
C.
Law of Heredity
D.
Law of Dominance and Recessiveness
Question 36 of 50
The Punnett square shows a possibility of offspring with blood type AB. In this genotype, A
and B are independent of one another. They do not blend to produce an intermediate effect.This
illustrates a type of inheritance known as
A. polygenic.
B.
incomplete dominance.
C.
codominance.
D.
gametogenesis.
Question 37 of 50
When black Andalusian chickens are crossed with white Andalusian chickens, blue Andalusian
chickens are produced. These chickens are not actually blue but appear this way because they
have both black and white feathers. This is an example of
A. co-dominance.
B.
multiple alleles.
C.
incomplete dominance.
D.
meiosis.
Question 38 of 50
Nose length in humans is controlled by more than 2 genes. Inheritance of nose length is an
example of which type of inheritance?
A. polygenic
B. codominance
C. multiple alleles
D. sex-linked
Question 39 of 50
The nucleus of a lettuce cell has 18 chromosomes. How many chromosomes would be in the
resulting daughter cell's nuclei after mitosis occurs in this cell?
A. 9
B.
18
C.
36
D.
54
Question 40 of 50
An Adder's tongue fern has a diploid (2n) number of 1,262. How many chromosomes would
there be in a reproductive cell from this species?
A. 1,894
B. 1,262
C. 2,524
D. 631
Question 41 of 50
The haploid number of a horse is 32. How many chromosomes would a horse sperm cell have
that is produced by meiosis?
A. 32
B. 64
C. 16
D. 96
Question 42 of 50
Chris investigated the relationship between the pH of the water, the level of nitrates, and the
growth of algae in freshwater ponds. He took water samples from four different ponds and
measured their pH, nitrate level, and algae concentrations.
Chris determined that the ponds with high levels of nitrates had a pH below 5. These ponds also
had high concentrations of algae.
Which statement helps explain the results of this investigation?
A. Nitrates provide nutrients for most types of freshwater algae.
B.
Algae are food for many freshwater animal species.
C.
Algae take in carbon dioxide and release oxygen.
D.
Alkaline rocks can neutralize acidic pond water.
Question 43 of 50
In guinea pigs, black fur is dominant over white. If a black guinea pig is crossed with a white
guinea pig and at least one of the offspring is white, what is the genotype of the black haired
parent?
A. black
B.
white
C.
Bb
D.
BB
Question 44 of 50
A cross between a plant with purple flowers and a plant with white flowers is shown below.
What genotype is represented in box 4?
A. purple
B. Pp
C. white
D. pp
Question 45 of 50
Betsy was testing unknowns to determine which biomolecules they contained. Her results are
given in the table below.
According to her data, unknown #1 most likely contains which of these?
A. lipids
B. proteins
C. starches
D. nucleic acids
Question 46 of 50
Before a protein is made, mRNA must be copied from DNA. This process is known as
A. replication.
B. translation.
C. transcription.
D. duplication.
Question 47 of 50
Which of these is not one of the four compounds that makes up the nucleotide sequences in
DNA?
A. adenine
B. cytosine
C. glycerine
D. thymine
Question 48 of 50
Which of the following is not a function of DNA?
A. DNA produces energy for cellular functions by converting ATP to ADP during
cellular respiration.
B. DNA transmits heritable traits to offspring,
C. DNA provides a template for sequencing the nucleotides in mRNA during
transcription.
D. DNA stores genetic information inside cells.
Question 49 of 50
The nucleotide pairs in an DNA molecule are arranged on a backbone made up of deoxyribose
and certain phosphate groups.
What type of substance is deoxyribose?
A. salt
B. metal
C. fat
D. sugar
Question 50 of 50
A purple flower is crossed with a white flower. They produce new plants that have flowers with
purple and white stripes. The mode of inheritance demonstrated by these flowers is
A. incomplete dominance
B.
codominance
C.
polygenic
D.
multiple alleles
Teacher Key with Answers
Ques Answer Level
Skill
Subskill
Item #
1
A
Easy
Embedded Inquiry,
Technology, Mathematics
SPI 3210.4 Accuracy and D109460
Precision [99216]
2
B
Easy
Embedded Inquiry,
Technology, Mathematics
SPI 3210.4 Accuracy and D109506
Precision [99216]
3
C
Moderate
Embedded Inquiry,
Technology, Mathematics
SPI 3210.4 Accuracy and D109461
Precision [99216]
4
A
Moderate
Embedded Inquiry,
Technology, Mathematics
SPI 3210.4 Accuracy and D109464
Precision [99216]
5
A
Moderate
Embedded Inquiry,
Technology, Mathematics
SPI 3210.4 Accuracy and D109511
Precision [99216]
6
C
Hard
Embedded Inquiry,
Technology, Mathematics
SPI 3210.4 Accuracy and D109465
Precision [99216]
7
D
Hard
Embedded Inquiry,
Technology, Mathematics
SPI 3210.4 Accuracy and D109509
Precision [99216]
8
B
Easy
Embedded Inquiry,
Technology, Mathematics
SPI 3210.5 Defend
Conclusion [99217]
D109462
9
B
Moderate
Embedded Inquiry,
Technology, Mathematics
SPI 3210.5 Defend
Conclusion [99217]
D109473
10
B
Hard
Embedded Inquiry,
Technology, Mathematics
SPI 3210.5 Defend
Conclusion [99217]
D109466
11
D
Easy
Embedded Inquiry,
Technology, Mathematics
SPI 3210.6 Bias [99218]
D109467
12
D
Moderate
Embedded Inquiry,
Technology, Mathematics
SPI 3210.6 Bias [99218]
D109463
13
D
Moderate
Embedded Inquiry,
Technology, Mathematics
SPI 3210.6 Bias [99218]
D109470
14
C
Hard
Embedded Inquiry,
Technology, Mathematics
SPI 3210.6 Bias [99218]
D109474
15
A
Easy
Embedded Inquiry,
Technology, Mathematics
SPI 3210.M.2 Genotype
Crosses [99226]
D109502
16
B
Easy
Embedded Inquiry,
Technology, Mathematics
SPI 3210.M.2 Genotype
Crosses [99226]
D51501
17
B
Moderate
Embedded Inquiry,
Technology, Mathematics
SPI 3210.M.2 Genotype
Crosses [99226]
D80907
18
D
Moderate
Embedded Inquiry,
SPI 3210.M.2 Genotype
D80903
Technology, Mathematics
Crosses [99226]
19
A
Hard
Embedded Inquiry,
Technology, Mathematics
SPI 3210.M.2 Genotype
Crosses [99226]
D80905
20
A
Hard
Embedded Inquiry,
Technology, Mathematics
SPI 3210.M.2 Genotype
Crosses [99226]
D52808
21
B
Hard
Embedded Inquiry,
Technology, Mathematics
SPI 3210.M.2 Genotype
Crosses [99226]
D50328
22
D
Easy
Standard 1 - Cells
SPI 3210.1.4 Test Bio
Molecules [99230]
D64409
23
A
Easy
Standard 1 - Cells
SPI 3210.1.4 Test Bio
Molecules [99230]
D60457
24
B
Easy
Standard 1 - Cells
SPI 3210.1.4 Test Bio
Molecules [99230]
D57819
25
D
Moderate
Standard 1 - Cells
SPI 3210.1.4 Test Bio
Molecules [99230]
D59798
26
D
Moderate
Standard 1 - Cells
SPI 3210.1.4 Test Bio
Molecules [99230]
D57088
27
B
Easy
Standard 4 - Heredity
SPI 3210.4.2 DNA
Replication [99247]
D61326
28
A
Moderate
Standard 4 - Heredity
SPI 3210.4.2 DNA
Replication [99247]
D62616
29
A
Moderate
Standard 4 - Heredity
SPI 3210.4.2 DNA
Replication [99247]
D61873
30
D
Easy
Standard 4 - Heredity
SPI 3210.4.3 Protein
Synthesis [99248]
D109479
31
A
Moderate
Standard 4 - Heredity
SPI 3210.4.3 Protein
Synthesis [99248]
D109482
32
A
Hard
Standard 4 - Heredity
SPI 3210.4.3 Protein
Synthesis [99248]
D62012
33
D
Easy
Standard 4 - Heredity
SPI 3210.4.4 Probability
of Traits [99249]
D58038
34
A
Moderate
Standard 4 - Heredity
SPI 3210.4.4 Probability
of Traits [99249]
D81686
35
B
Moderate
Standard 4 - Heredity
SPI 3210.4.4 Probability
of Traits [99249]
D81683
36
C
Easy
Standard 4 - Heredity
SPI 3210.4.5 Mode of
Inheritance [99250]
D53029
37
A
Easy
Standard 4 - Heredity
SPI 3210.4.5 Mode of
Inheritance [99250]
D62508
38
A
Moderate
Standard 4 - Heredity
SPI 3210.4.5 Mode of
Inheritance [99250]
D62375
39
B
Easy
Standard 4 - Heredity
SPI 3210.4.6 Meiosis &
Gametes [99251]
D60083
40
D
Moderate
Standard 4 - Heredity
SPI 3210.4.6 Meiosis &
Gametes [99251]
D59586
41
A
Moderate
Standard 4 - Heredity
SPI 3210.4.6 Meiosis &
Gametes [99251]
D59283
42
A
Moderate
Embedded Inquiry,
Technology, Mathematics
SPI 3210.5 Defend
Conclusion [99217]
D109469
43
C
Easy
Embedded Inquiry,
Technology, Mathematics
SPI 3210.M.2 Genotype
Crosses [99226]
D61388
44
D
Moderate
Embedded Inquiry,
Technology, Mathematics
SPI 3210.M.2 Genotype
Crosses [99226]
D80909
45
C
Moderate
Standard 1 - Cells
SPI 3210.1.4 Test Bio
Molecules [99230]
D53507
46
C
Easy
Standard 4 - Heredity
SPI 3210.4.1 DNA
Structure/ Function
[99246]
D59578
47
C
Moderate
Standard 4 - Heredity
SPI 3210.4.1 DNA
Structure/ Function
[99246]
D109475
48
A
Moderate
Standard 4 - Heredity
SPI 3210.4.1 DNA
Structure/ Function
[99246]
D109478
49
D
Hard
Standard 4 - Heredity
SPI 3210.4.1 DNA
Structure/ Function
[99246]
D109477
50
B
Moderate
Standard 4 - Heredity
SPI 3210.4.5 Mode of
Inheritance [99250]
D50842
Name:
Biology Holiday Pack 1st Semester 2011
Date:
Question 1 of 50
Molly is investigating the staining power of liquid fabric dye dissolved in water at different
concentrations. She mixed a dye solution containing 9 ml water and 1 ml liquid fabric dye and
labeled it Solution A. She removed 10% of Solution A and diluted it with water to equal 10 ml,
and labeled it Solution B. She repeated this procedure two more times to produce solutions in
the concentrations below:
Solution A: 90% water, 10% fabric dye
Solution B: 99% water, 1% fabric dye
Solution C: 99.9% water, 0.1% fabric dye
Solution D: 99.99% water, 0.01% fabric dye
Which of the following would produce the most precise measurements in Molly's investigation?
A. 15 ml pipette marked at 1 ml intervals
B.
100 ml pipette marked at 5 ml intervals
C.
100 pipette marked at 10 ml intervals
D.
1000 pipette marked at 100 ml intervals
Question 2 of 50
Research into the human genome has produced a highly detailed picture of the amount of
genetic variation among human beings. Geneticists are confident that humans are about 99.9%
genetically identical, meaning that all of the variation among people is produced by about one
tenth of one percent of our genome.
Why are geneticists confident about this conclusion?
A. Genomes are simple to compare because there are only a few possible
sequences that can be made from the nucleotide bases.
B.
Genetic testing has been conducted by numerous scientific teams that reached
the same conclusion.
C.
People in the same family often look alike and have similar health histories.
D.
DNA contain genes that have been passed down through hundreds of
generations.
Question 3 of 50
Molly is investigating the staining power of liquid fabric dye dissolved in water at different
concentrations. She mixed a dye solution containing 9 ml water and 1 ml liquid fabric dye and
labeled it Solution A. She removed 10% of Solution A and diluted it with water to equal 10 ml,
and labeled it Solution B. She repeated this procedure two more times to produce solutions in
the concentrations below:
Solution A: 90% water, 10% fabric dye
Solution B: 99% water, 1% fabric dye
Solution C: 99.9% water, 0.1% fabric dye
Solution D: 99.99% water, 0.01% fabric dye
Molly placed a drop of each solution on a small swatch of silk fabric to test the staining power
of each solution. The results of the stain tests supported Molly's hypothesis.
How could Molly evaluate the accuracy of her results?
A. She could repeat the investigation using smaller units.
B.
She could repeat the investigation using larger units.
C.
She could compare her test swatches to swatches produced by the dye
manufacturer.
D.
She could test the dye solutions on swatches of a different type of fabric.
Question 4 of 50
Jules and Jayne were investigating the relationship between mass and density by measuring the
mass and volume of several materials.
Which investigation would have the greatest precision?
A. An investigation that measures mass in milligrams and volume in milliliters.
B. An investigation that measures mass in centigrams and volume in centiliters.
C. An investigation that measures mass in grams and volume in liters.
D. An investigation that measures mass in kilograms and volume in kiloliters.
Question 5 of 50
Each year hundreds of papers about scientific investigations are produced, but many of the
papers will not be published in scientific journals.
How do the editors at scientific journals decide which papers to publish?
A. Respected scientists review the papers that are submitted and recommend the best
for publication.
B. Journal editors hold a lottery where each paper submitted has an equal chance to
be selected at random.
C. Papers are included in journal in the order that they are received until their page
limit is reached.
D. Journal editors check their monthly budget to decide which papers they can afford
to publish.
Question 6 of 50
Jules and Jayne were investigating the relationship between mass and density by measuring the
mass and volume of several materials.
How should Jules and Jayne evaluate the accuracy of their data?
A. Convert their data into smaller units of measurement.
B. Ask other students to repeat their investigation.
C. Look up the accepted densites of the materials used in their investigation.
D. Look up the chemical formulas of the materials used in their investigation.
Question 7 of 50
Data from experimental investigations can cause scientific theories to be revised.
Which of the following must occur before the results of an investigation are used to revise an
existing theory?
A. The scientific community must decide who receives credit for the theory once it has
been revised.
B. Researchers must determine that other scientific theories will not be affected by the
revision.
C. Everyone working on the investigative team must provide their scientific
credentials.
D. The experimental results must be obtained by other researchers who have repeated
the investigation.
Question 8 of 50
Molly is investigating the staining power of liquid fabric dye dissolved in water at different
concentrations. She mixed a dye solution containing 9 ml water and 1 ml liquid fabric dye and
labeled it Solution A. She removed 10% of Solution A and diluted it with water to equal 10 ml,
and labeled it Solution B. She repeated this procedure two more times to produce solutions in
the concentrations below:
Solution A: 90% water, 10% fabric dye
Solution B: 99% water, 1% fabric dye
Solution C: 99.9% water, 0.1% fabric dye
Solution D: 99.99% water, 0.01% fabric dye
Molly tested the staining power of the solutions by placing a drop of each on four small
swatches of silk fabric. Solution A produced the darkest stain and Solution D produced the
lightest stain on the silk swatches.
Which statement best explains these results?
A. There are fewer molecules of fabric dye in Solution A than there are in Solution
D.
B.
There are more molecules of fabric dye in Solution A than there are in Solution
D.
C.
The water dissolved the fabric dye more quickly in Solution A than it did in
Solution D.
D.
The water dissolved the fabric dye more slowly in Solution A than it did in
Solution D.
Question 9 of 50
Kaylee investigated the relationship between an object's mass and the rate at which the object
fell to the ground when dropped from a height. To conduct the investigation, she dropped
objects of different masses from a height of 40 feet and measured the amount of time it took
each one to hit the ground.
Kaylee concluded that the mass of an object is not an important factor in the rate at which an
object falls.
Which statement supports Kaylee's conclusion?
A. Heavy objects hit the ground before light objects because Earth's gravity
accelerates objects at a rate of 32 feet per gram2.
B.
Most of the objects hit the ground about 1 second after they were dropped
because Earth's gravity accelerates objects at a rate of 32 feet per second2.
C.
The time it took each object to hit the ground was measured in seconds and
divided by the distance the object fell in feet to calculate the rate at which each
object fell.
D.
The mass of each object was measured in grams and recorded in a notebook
before the object was dropped.
Question 10 of 50
Jules and Jayne were investigating the relationship between mass and density by measuring the
mass and volume of several materials.
Jules suggested measuring the volume of their solid materials by immersing them in a graduated
cylinder containing water, and measuring the change in the water level. Jayne agreed that this
was a good idea for measuring some of the solid materials, but concluded that it would not
produce accurate measurements for all of the solids.
Which statement supports Jayne's conclusion?
A. A solid with a density that is greater than 1 gram per cubic centimeter will float
on the surface of the water.
B.
A solid with a density that is less than 1 gram per cubic centimeter will float on
the surface of the water.
C.
A solid with a temperature that is less than 25 °C will float on the surface of the
water.
D.
A solid with a temperature that is more than 25 °C will float on the surface of
the water.
Question 11 of 50
Jules and Jayne were investigating the relationship between mass and density by measuring the
mass and volume of several materials.
Which of the following would introduce a bias to their investigation that could affect their
results?
A. recording measurements for each material in a notebook
B. checking the balance scale by weighing a known mass
C. converting mass to grams and volume to cubic centimeters
D. rounding mass and volume measurements to the nearest whole number
Question 12 of 50
Molly is investigating the staining power of liquid fabric dye dissolved in water at different
concentrations. She mixed a dye solution containing 9 ml water and 1 ml liquid fabric dye and
labeled it Solution A. She removed 10% of Solution A and diluted it with water to equal 10 ml,
and labeled it Solution B. She repeated this procedure two more times to produce solutions in
the concentrations below:
Solution A: 90% water, 10% fabric dye
Solution B: 99% water, 1% fabric dye
Solution C: 99.9% water, 0.1% fabric dye
Solution D: 99.99% water, 0.01% fabric dye
Molly tested the staining power of the solutions by placing a drop of each on four small
swatches of silk fabric. She allowed the fabric swatches to completely dry before comparing the
stains on each swatch.
Which of the following could introduce a bias to the investigation that could affect the results?
A. drying each swatch under the same conditions
B.
placing an equal amount of dye on each swatch
C.
using distilled water in all of the dye solutions
D.
testing each solution on a different type of fabric
Question 13 of 50
Chris investigated the relationship between the pH of the water, the level of nitrates, and the
growth of algae in freshwater ponds. He took water samples from four different ponds and
measured their pH, nitrate level, and algae concentrations.
Which of the following could introduce a bias to the investigation that could affect his results?
A. testing the water samples immediately after collection
B.
using a pH meter to determine the pH of each sample
C.
collecting water samples from several places in each pond
D.
collecting water samples from the shady areas in each pond
Question 14 of 50
Kaylee investigated the relationship between an object's mass and the rate at which the object
fell to the ground when dropped from a height. To conduct the investigation, she dropped
objects of different masses from a height of 40 feet and measured the amount of time it took
each one to hit the ground.
Which of the following would introduce a bias to Kaylee's investigation that could affect the
results?
A. using a stop watch to measure the time each object takes to hit the ground
B.
setting up a video camera to record the investigation
C.
testing objects with very different shapes and surface areas
D.
testing objects that have very similar shapes and surface areas
Question 15 of 50
What is the name for the sequence of nucleotide base pairs in an individual's DNA?
A. genotype
B. phenotype
C. meiosis
D. mitosis
Question 16 of 50
In peas, purple flower color is dominant to white flower color. If a plant heterozygous for
purple flowers is crossed with one that is homozygous for white flowers, what is the genotype
of the box labeled 4?
A. PP
B.
pp
C.
purple
D.
white
Question 17 of 50
A cross between a man with type A blood and a woman with type B blood is shown below.
What is the likelihood that these two parents will produce a child with type O blood?
A. 0%
B. 25%
C. 50%
D. 100%
Question 18 of 50
The Punnett square below shows a cross between two black rabbits.
If 50% of the offspring have the allele combination BB and 50% have the allele combination
Bb, what is the genotype of the unknown parent?
A. not enough information
B. bb
C. Bb
D. BB
Question 19 of 50
A cross between two black, running mice is shown below.
What fraction of the offspring expected from this cross would be black, waltzing mice?
A. 3/16
B. 1/16
C. 9/16
D. 4/16
Question 20 of 50
In peas, tall plants are dominant over short and purple flowers are dominant over white. The
punnett square below shows a cross between two plants heterozygous for both tall plants and
purple flowers. What are the chances of getting a plant that is short with white flowers from this
cross?
A.
B.
C.
D.
Question 21 of 50
Rough coat in guinea pigs is dominant over smooth and short hair is dominant over long. If two
guinea pigs heterozygous for rough, short hair are crossed, what fraction of their offspring
would also be heterozygous for both traits?
A.
B.
C.
D.
Question 22 of 50
Rubbing a substance on unglazed brown paper will indicate the presence of a lipid if a shiny,
translucent spot is left. From the data in the diagram below, which substance(s) contain(s)
lipids?
A. 1 only
B. 2 only
C. 1 and 3
D. 2 and 4
Question 23 of 50
Students were testing for the presence of certain biomolecules in lab. When iodine was added to
test substance A, the substance turned a blue-black color. This color change indicates the
presence of what substance?
A. Starch
B.
Protein
C.
Nucleic Acid
D.
Lipid
Question 24 of 50
When cheese is rubbed on a brown paper bag, a transluscent, shiny spot can be seen. This test
would show the presence of what organic compound?
A. carbohydrate
B.
lipid
C. protein
D. calorie
Question 25 of 50
Ben and Brandon were testing unknowns for the presence of biomolecules in lab. When adding
iodine to their test tubes, Ben accidently spilled iodine on Brandon's t-shirt. The spot
immediately changed from the golden color of iodine to a dark black color. Which biomolecule
was present in Brandon's shirt?
A. lipid
B.
protein
C.
nucleic acid
D.
starch
Question 26 of 50
Zach is eating potato chips and leaves the crumbs in the bottom of his brown paper lunch bag.
When he gets home he notices a shiny translucent spot on the bag where the crumbs have been.
Which biomolecule left this spot on his lunchbag?
A. a nucleic acid
B.
a protein
C.
a carbohydrate
D.
a lipid
E.
The shiny translucent spot was a result of fat.
Question 27 of 50
The two major functions of DNA are
A. replication and transcription.
B. replication and protein synthesis.
C. transcription and protein synthesis.
D. replication and mitosis.
Question 28 of 50
The DNA in the diagram is replicated before mitosis begins. While being replicated, a mistake
occurred. What type mistake is represented by the (*)?
A. substitution
B. addition
C. deletion
D. inversion
Question 29 of 50
DNA has two major functions. Which major function of DNA is shown in the diagram below?
A. replication
B. translation
C. transcription
D. protein synthesis
Question 30 of 50
Inside cells, mRNA copy the nucleotide sequences located in the DNA. The mRNA carry these
copies to ribosomes where tRNA use the sequences to produce an important substance.
What substance is produced by this process?
A. sugar
B.
lipid
C.
water
D.
protein
Question 31 of 50
Which molecules determine the types of protein that are produced inside a cell?
A. mRNA and tRNA
B. ADP and ATP
C. O2 and CO2
D. LDL and HDL
Question 32 of 50
Cells perform many important processes to help maintina life. Which important cellular
processes is depicted in the above diagram?
A. transcription
B. respiration
C. replication
D. translation
Question 33 of 50
In a monohybrid cross between 2 mice heterozygous for fur color, the phenotypic ratio among
offspring is 3 with black fur to 1 with brown fur. Which trait is dominant?
A. not enough information given to determine
B.
mixture of brown and black fur
C.
brown fur
D.
black fur
Question 34 of 50
Which of Mendel's principles says that when gametes are formed in diploid organisms, the
segregation of each gene pair does not affect the segregation of other gene pairs as long as the
gene pairs are on separate chromosomes?
A. Principle of Independent Assortment
B.
Principle of Dominance and Recessiveness
C.
Principle of Segregation
D.
Principle of Heredity
Question 35 of 50
When Mendel crossed a purple-flowered plant with the genotype Ww and a white-flowered
plant with the genotype ww, the result was 50% purple-flowered plants and 50% white-flowered
plants.
Which of Mendel's Laws does this support?
A. Law of Independent Assortment
B.
Law of Segregation
C.
Law of Heredity
D.
Law of Dominance and Recessiveness
Question 36 of 50
The Punnett square shows a possibility of offspring with blood type AB. In this genotype, A
and B are independent of one another. They do not blend to produce an intermediate effect.This
illustrates a type of inheritance known as
A. polygenic.
B.
incomplete dominance.
C.
codominance.
D.
gametogenesis.
Question 37 of 50
When black Andalusian chickens are crossed with white Andalusian chickens, blue Andalusian
chickens are produced. These chickens are not actually blue but appear this way because they
have both black and white feathers. This is an example of
A. co-dominance.
B.
multiple alleles.
C.
incomplete dominance.
D.
meiosis.
Question 38 of 50
Nose length in humans is controlled by more than 2 genes. Inheritance of nose length is an
example of which type of inheritance?
A. polygenic
B. codominance
C. multiple alleles
D. sex-linked
Question 39 of 50
The nucleus of a lettuce cell has 18 chromosomes. How many chromosomes would be in the
resulting daughter cell's nuclei after mitosis occurs in this cell?
A. 9
B.
18
C.
36
D.
54
Question 40 of 50
An Adder's tongue fern has a diploid (2n) number of 1,262. How many chromosomes would
there be in a reproductive cell from this species?
A. 1,894
B. 1,262
C. 2,524
D. 631
Question 41 of 50
The haploid number of a horse is 32. How many chromosomes would a horse sperm cell have
that is produced by meiosis?
A. 32
B. 64
C. 16
D. 96
Question 42 of 50
Chris investigated the relationship between the pH of the water, the level of nitrates, and the
growth of algae in freshwater ponds. He took water samples from four different ponds and
measured their pH, nitrate level, and algae concentrations.
Chris determined that the ponds with high levels of nitrates had a pH below 5. These ponds also
had high concentrations of algae.
Which statement helps explain the results of this investigation?
A. Nitrates provide nutrients for most types of freshwater algae.
B.
Algae are food for many freshwater animal species.
C.
Algae take in carbon dioxide and release oxygen.
D.
Alkaline rocks can neutralize acidic pond water.
Question 43 of 50
In guinea pigs, black fur is dominant over white. If a black guinea pig is crossed with a white
guinea pig and at least one of the offspring is white, what is the genotype of the black haired
parent?
A. black
B.
white
C.
Bb
D.
BB
Question 44 of 50
A cross between a plant with purple flowers and a plant with white flowers is shown below.
What genotype is represented in box 4?
A. purple
B. Pp
C. white
D. pp
Question 45 of 50
Betsy was testing unknowns to determine which biomolecules they contained. Her results are
given in the table below.
According to her data, unknown #1 most likely contains which of these?
A. lipids
B. proteins
C. starches
D. nucleic acids
Question 46 of 50
Before a protein is made, mRNA must be copied from DNA. This process is known as
A. replication.
B. translation.
C. transcription.
D. duplication.
Question 47 of 50
Which of these is not one of the four compounds that makes up the nucleotide sequences in
DNA?
A. adenine
B. cytosine
C. glycerine
D. thymine
Question 48 of 50
Which of the following is not a function of DNA?
A. DNA produces energy for cellular functions by converting ATP to ADP during
cellular respiration.
B. DNA transmits heritable traits to offspring,
C. DNA provides a template for sequencing the nucleotides in mRNA during
transcription.
D. DNA stores genetic information inside cells.
Question 49 of 50
The nucleotide pairs in an DNA molecule are arranged on a backbone made up of deoxyribose
and certain phosphate groups.
What type of substance is deoxyribose?
A. salt
B. metal
C. fat
D. sugar
Question 50 of 50
A purple flower is crossed with a white flower. They produce new plants that have flowers with
purple and white stripes. The mode of inheritance demonstrated by these flowers is
A. incomplete dominance
B.
codominance
C.
polygenic
D.
multiple alleles