.__________________ are what pass
inherited traits from parents to their
children.
A.nuclei
B.chromosomes
C.genes
D.phenotypes
1
And the answer is…
C. genes
_______________ was the scientist who
first studied pea plants to learn more about
heredity.
A.
B.
C.
D.
Mendel
Einstien
Gregory
Fischel
2
And the answer is…
A. Mendel
If both genes for a trait are the same, the
offspring is called:
A.
B.
C.
D.
purebred
hybrid
recessive
dominant
3
And the answer is…
A. purebred
Using a Punnett square, what is the probability
of a purebred hamster with light fur(dominant)
and purebred hamster with dark fur of having
offspring with light fur?
A.one of four
B.two of four
C.three of four
D.four of four
4
And the answer is…
D. four of four
How many chromosomes do humans
have?
A.
B.
C.
D.
19
23
39
46
5
And the answer is…
D. 46
A jewelry store was robbed. While breaking open one of the glass display
cases, the robber was cut. They left blood behind at the scene of the crime.
The sample was sent to the lab.
The police thought that it was one of three people that may be
guilty of the crime. A sample of each of the suspects DNA was collected and
sent to the lab as well.
Police then received the diagram
shown in the report from the lab.
Based on the DNA left at the crime
scene, which suspect is most likely
guilty?
A. Suspect 1
B. Suspect 2
C. Suspect 3
6
And the answer is…
B. Suspect 2
What term means the smallest unit
that is able to perform the basic
functions of life?
7
And the answer is…
cells
Which organelle produces most of
the energy needed by a cell?
A. mitochondria
B. chloroplasts
C. ribosomes
D. Golgi bodies
8
And the answer is…
A. mitochondria
In what type of cells would you
expect to find a lot of mitochondria?
A. skin cells
B. blood cells
C. bone cells
D. muscle cells
9
And the answer is…
D. muscle cells
Which structure
listed is responsible
for direction of all
of the cell’s
activities?
A.
B.
C.
D.
A
B
C
D
10
And the answer is…
D. D
What term means a structure that
is made up of different tissues
working together to perform a
particular function?
11
And the answer is…
organ
What term means an individual
living thing made up of one or
many cells that is capable of
growing and reproducing?
12
And the answer is…
organism
What term means a group of
similar cells that are organized to
do a specific job?
13
And the answer is…
tissue
Two forms of the same gene are
known as
A.Alleles
B.Chromosomes
C.Genotypes
D.Sex cells
14
And the answer is…
A. Alleles
Long, thin fibers that carry
information that controls the cell’s
activities are
A.Nucleic acids
B.Dominant traits
C.Recessive traits
D.chromosomes
15
And the answer is…
D. chromosomes
If you cross a white flower (with genotype pp)
with a purple flower (with the genotype PP), the
possible genotypes and phenotypes possible are
A.PP
B.Pp
C.Purple flowers
D.White flowers
E. A and B only
F. B and C only
G.A , B and C only
H.A, B, C and D only
16
And the answer is…
F. B and C only
The passing of traits from parents
to offspring is
A.probability
B.heredity
C.recessive
D.meiosis
17
And the answer is…
B. heredity
B is for brown eyes and b is for blue eyes.
Cross a heterozygous with a homozygous
recessive. What is the percentage of the
offspring that are heterozygous?
A.25%
B.50 %
C.75%
D.0%
18
And the answer is…
B. 50 %
H is for hairy fingers and h is for non-hairy fingers.
Cross a heterozygous with a heterozygous. What are
the phenotypes and genotypes?
A. HH, hairy fingers
B. Hh non-hairy fingers
C. hh, non-hairy fingers
D.Hh, hairy fingers
E. A and B only
F. B and D only
G.A, B and C only
H.A, B and D only
I. A, C, and D only
19
And the answer is…
I. A, C, and D only
If you cross two rabbits that have the genotype Bb,
what are the possible genotypes for the offspring?
A. BB
B. bb
C. Bb
D. bB
E. A and B only
F. A, B and C only
G.A, B and D only
H.A, C and D only
I. B, C and D only
J. A, B, C and D only
20
And the answer is…
F. A, B and C only
Phenotype unknown, only
genotypes shown in Punnett square
Mutations are changes in
A.DNA
B.The cell cycle
C.tRNA
D.Proteins
21
And the answer is…
A. DNA
What is the part of a chromosome
that carries information for a specific
trait called?
A.Nucleic acid
B.Gene
C.Genotype
D.Phenotype
22
And the answer is…
B. Gene
A zygote is
A. A male reproductive cell
B. A female reproductive cell
C. A newly formed cell after the union
of a sperm and egg
D. Both male and female reproductive
cells
23
And the answer is…
C. A newly formed cell
after the union of a
sperm and egg
Identify the statement that best states the
difference between dominant and recessive
traits.
A.Recessive traits show up more often than
dominant traits.
B.Recessive traits show up as often as dominant
traits.
C.Recessive traits show up less often than
dominant traits.
D.Recessive and dominant traits are the same.
24
And the answer is…
C. Recessive traits show
up less often than
dominant traits.
What percentage of pea plants showed the
dominant phenotype?
A.100 %
B.75 %
C.50 %
D.25 %
25
And the answer is…
B. 75 %
12 of the 16 total
What percentage of pea plants showed
the recessive phenotype?
A.100 %
B.75%
C.50%
D.25%
26
And the answer is…
D. 25%
4 of the 16 total
What is the genotype of the dwarf pea plants?
A.DD
B.Dd
C.dd
D.Cannot tell
27
And the answer is…
C. dd
What are the possible genotypes of the regular pea
plants?
A. DD and dd
B. DD and Dd
C. Dd and dd
D. cannot tell
28
And the answer is…
B. DD and Dd
Which statement is true, based on the data in the chart?
A. If both parents were Dd, then none of the offspring would
be dwarf.
B. If both parents were DD, then none of the offspring would
be dwarf.
C. If one parent were Dd and the other were dd, then none of
the offspring would be regular.
D. If one parent were DD and the other parent were dd, then
none of the offspring would be regular.
29
And the answer is…
B. If both parents were
DD, then none of the
offspring would be
dwarf.
What are the genotypes of the parents?
A.Dd and dd
B.DD and Dd
C.Dd and Dd
D.dd and dd
30
And the answer is…
C. Dd and Dd
Both are heterozygous/hybrid
T is for thin lips and t is for full lips. Cross a
homozygous dominant with a heterozygous.
Identify the percentage of offspring with thin lips
and the correct genotypes for thin lips.
Choose all that apply.
A.TT
B.Tt
C.50%
D.100%
31
And the answer is…
A , B, and D
A population of mice is evenly divided into two groups, and each group is placed on an
isolated island with no existing mouse population. Which statement best explains the
difference in the mouse populations on Island A and Island B at the end of 20 years?
A. On Island A, the allele for gray fur was dominant, while on Island B, the allele for
brown fur was dominant.
B. More brown mice were in the half of the original population that was sent to Island
B than in the group sent to Island A.
C. Conditions on Island B favored the brown-furred individuals, while both fur colors
were evenly advantaged on Island A.
D. The recapturing of mice on Island A and Island B was done differently.
32
And the answer is…
C. Conditions on Island B favored the
brown-furred individuals, while both
fur colors were evenly advantaged
on Island A.
Genes are sequences of DNA, which are
made up of
A.Nucleotides
B.Chromosomes
C.Phosphates
D.Ribosomes
33
And the answer is…
A. Nucleotides
The base sequence of nucleotides
in a DNA strand that compliments
the DNA base sequence ACGAT is
A.TGCTA
B. ACGAT
C.CGCTA
D.TGCAT
34
And the answer is…
A.TGCTA
In a plant that has red flowers, red flower color, R,
is completely dominant to white flower color, r. If
the plant is heterozygous for flower color, which
alleles will be carried by the gametes it
produces?
A.R and r
B.R only
C.r only
D.Rr only
35
And the answer is…
A. R and r
In pigeons, the allele for normal feathers (F) is dominant to the allele for frizzy feathers (f).
If a purebred, normal-feathered bird (FF) is crossed with a frizzy-feathered (ff) bird how
many different feather phenotypes are possible in the offspring?
A.
B.
C.
D.
1
2
3
4
36
And the answer is…
A. 1
In humans, the allele for unattached earlobes
(L) is dominant to the allele for attached
earlobes (l).
Based on the diagram, an offspring with
attached earlobes is indicated in
A.
B.
C.
D.
Box 1
Box 4
Boxes 2 and 3
Boxes 1, 2, and 3
37
And the answer is…
B. Box 4
Which is an example of an acquired
trait?
A.Eye color
B.Hair color
C.Blood type
D.Ability to read
38
And the answer is…
D. Ability to read
A human female would have which
set of sex chromosomes?
A.XX
B.YY
C.XY
D.XxYy
39
And the answer is…
A. XX
If one copy of a dominant allele is present in
a genotype for a trait, then the trait is
A.Expressed in the phenotype
B.Not expressed in the phenotype
C.Partially expressed in the phenotype
D.Not expressed in an offspring’s
phenotype
40
And the answer is…
A. Expressed in the phenotype
In guinea pigs, the allele for black fur (B) is
dominant, and the allele for brown fur (b) is
recessive. If a BB male mates with a Bb female,
what percentage of offspring are likely to have
black fur?
A.100 percent
B.75 percent
C.50 percent
D.25 percent
41
And the answer is…
A. 100 percent
Genetic engineering involves
A.Inserting changed DNA into an
organism
B.Cross-breeding plants
C.Testing new medicines for genetic
diseases
D.Using x-rays to change DNA
42
And the answer is…
A. Inserting
changed DNA
into an organism
If one parent has two dominant alleles and
another parent has two recessive alleles, the
offspring will have
A.The recessive phenotype
B.The dominant phenotype
C.Two dominant alleles
D.Two recessive alleles
43
And the answer is…
B. The dominant
phenotype
Cells that contain half the usual number of
chromosomes are
A.fertilized egg cells
B.gametes
C.alleles
D.diploid cells
44
And the answer is…
B. gametes
Proteins are made up of a sequence
of
A.Chromosomes
B.Amino acids
C.Nucleotides
D.Base pairs
45
And the answer is…
B. Amino acids
The process that produces haploid (1n)
cells is known as
A.Mitosis
B.Reproduction
C.Meiosis
D.Fertilization
46
And the answer is…
C. Meiosis
What happens when fertilization occurs?
A. Two 2n cells combine in a new
cell
B. Two 1n cells combine into a new
cell
C. Two 2n daughter cells are
produced
D. Two 1n daughter cells are
produced
47
And the answer is…
B. Two 1n cells combine into a new cell
Which does not occur during meiosis?
A.Four haploid daughter cells are
produced.
B.Two diploid daughter cells are
produced.
C.Only cells that are gametes are
produced.
D.Daughter cells are produced that
contain half the chromosomes of the
parent cell.
48
And the answer is…
B. Two diploid
daughter cells are
produced.
What happens during replication?
A.DNA is copied.
B.RNA is copied.
C.Ribosomes are made
D.Proteins are made.
49
And the answer is…
A.DNA is
copied.
Which base is found only in RNA?
A.Thymine
B.Guanine
C.Thymine
D.Uracil
50
And the answer is…
D. Uracil
The main function of mRNA in protein
synthesis is to
A.Transfer amino acids to a
ribosome
B.Carry proteins to the ribosome
C.Transcribe genes from DNA
D.Connect nucleotides together
51
And the answer is…
C. Transcribe genes from DNA
Which is a known cause of genetic
mutations?
A.Poor nutrition
B.Malaria
C.UV radiation
D.Cancer
52
And the answer is…
C. UV radiation
A pedigree shows
A.How proteins are synthesized
B.How members of a family are
related
C.Where mutations are located in a
sequence of DNA
D.Which triplet of bases matches up
with a particular amino acid.
53
And the answer is…
B. How members
of a family are
related
The main goal of the Human Genome
Project was to
A.Find cures for genetic diseases
B.Find all mutations in human DNA
C.Count the number of genes in
human DNA
D.Sequence all DNA on human
chromosomes
54
And the answer is…
D. Sequence all
DNA on human
chromosomes
The DNA profiles represent four
different individuals.
Which of the following
statements is consistent with the
results?
A.
B.
C.
D.
E.
B is the child of A and C.
C is the child of A and B.
D is the child of B and C.
A is the child of B and C.
A is the child of C and D.
55
And the answer is…
B. C is the child of A and B.