TEST
CONCEPTS OF BIOLOGY: MEIOSIS AND FERTILIZATION
1.
What process produces male and female reproductive cells in plants?
A.
B.
C.
D.
2.
mitosis
meiosis
replication
fertilization
Use the information below to answer the following item.
A pair of laboratory mice are crossed to obtain offspring. Three alleles found in the female gamete are ABC. Three
alleles found in the male gamete are Abc.
Which of these is a possible combination of alleles for the offspring produced by these mice?
A.
B.
C.
D.
3.
Horses have 64 chromosomes in each body cell. If a horse cell undergoes meiosis, how many chromosomes
should be in each gamete?
A.
B.
C.
D.
4.
16
32
64
128
Sea stars are genetically different from each other and from their parents. These genetic differences are the
result of
A.
B.
C.
D.
5.
AaBbCc
AABBCC
aabbcc
AABbCc
mitosis
cloning
sexual reproduction
asexual reproduction
Which of these is produced as a result of fertilization?
A.
B.
C.
D.
6.
a zygote with twice the number of chromosomes as a gamete
an egg with half the number of chromosomes as a zygote
a gamete with twice the number of chromosomes as a zygote
a zygote with half the number of chromosomes as a gamete
A sperm cell of a moth has 112 chromosomes. How many chromosomes are in the moth's wing cells?
A.
B.
C.
D.
66
112
224
448
7.
Which of these represents the number of chromosomes in cells before and after the process of meiosis?
A.
B.
C.
D.
n n
n 2n
2n n
2n 2n
8.
Use the information below to answer the following.
The largest flower in the world, called a rafflesia, is three feet wide and weighs up to 36 pounds. The
rafflesia has no roots, stems, or leaves. It lives on and takes nourishment from a vine called
tetrastigma. The rafflesia harms the vine.
The seeds of the rafflesia are dispersed in an unusual way. Plantain squirrels and tree shrews eat parts
of the rafflesia plant. Scientists observe that when the animals chew the rafflesia, seeds get caught in
their teeth. The animals will then chew on tetrastigma vines, leaving the seeds where they can
germinate.
Specialized cells in the rafflesia flowers undergo a process that produces gametes. What is this process called?
A.
B.
C.
D.
9.
binary fission
meiosis
fertilization
enzyme regulation
Apomixis is a type of asexual reproduction in which adult plants grow directly from egg cells. Which of these
does not occur during apomixis?
A.
B.
C.
D.
10.
mitosis
translation
fertilization
transcription
A pair of laboratory mice are crossed to obtain offspring. Three alleles found in the female gamete are ABC.
Three alleles found in the male gamete are Abc.
What is formed when a male gamete combines with a female gamete?
A.
B.
C.
D.
zygote
egg
sperm
chromosome
11.
Which of these does not occur during meiosis?
A.
B.
C.
D.
12.
production of identical gametes
production of new gene combinations
crossing-over of homologous chromosomes
reduction of chromosome number by one-half
Corals are marine animals that often live in tropical seas. Many types of corals have unicellular algae living
in their tissues. The algae provide up to 98 percent of the corals' food. The corals provide protection and
inorganic nutrients for the algae.
Some coral cells undergo meiosis. Which of these would not occur during meiosis?
A.
B.
C.
D.
13.
Reproductive cells are produced during
A.
B.
C.
D.
14.
random breakage in a liver cell's DNA
abnormal lung cells produced by toxins in smoke
a nitrogen base substitution in a gamete cell
ultraviolet radiation damage to skin cells
After an egg cell containing 16 chromosomes is fertilized, how many chromosomes will be present in the
zygote?
A.
B.
C.
D.
16.
8
16
32
64
A protein called p53 can keep cells from dividing. To prevent cell division, this protein most likely stops
A.
B.
C.
D.
17.
mitosis
meiosis
fertilization
budding
Which of these describes a mutation that can be inherited?
A.
B.
C.
D.
15.
formation of a zygote
chromosomes crossing-over
production of gametes
reduction in number of chromosomes
osmosis
mitosis
respiration
mutation
Scientists determined that excess fertilizer from farms entered a shallow lake. The fertilizer caused an
increase in aquatic plants in the lake and then a decrease in oxygen in the water. Next, organic debris
collected on the bottom of the lake. Over several years, the lake gradually filled in with organic sediment.
One species of aquatic plant found in the lake has 84 chromosomes in each cell. As nutrient levels increased,
the population of this species increased through vegetative reproduction. How many chromosomes were in
the cells of the offspring?
A.
B.
C.
D.
21
42
84
168
18. Below is a diagram that represents the relationship between two glands.
This is an example of
A.
B.
C.
D.
polarity
feedback
natural selection
anaerobic respiration
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