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B-4.5 Meiosis
Test Description: Recognize the steps of meiosis,recall major events of the steps, recall the significance of meiosis in reproduction, compare mitosis and meiosis.
Instructions: Answer all questions to get your test result.
1) What is the name of the process that results in daughter cells with 1/2 the number of chromosomes as the parent cell?
A
interphase
B
cytokinesis
C
mitosis
D
meiosis
2) If gametes were produced by mitosis, the zygote formed from their union would
A
have the same the number of chromosomes as the parent's body cells.
B
have 1/2 the number of chromosomes as the parent's body cells.
C
have 4 times the number of chromosomes as the parent's body cells.
D
have twice the number of chromosomes as the parent's body cells.
3) If the haploid number of chromosomes for a buffalo is 30, the number of chromosomes in an egg will be
A
30
B
15
C
45
D
60
4) The division that reduces chromosome number by 1/2 occurs during
A
Meiosis II
B
Interphase
C
Mitosis
D
Meiosis I
5) One difference between meiosis I and mitosis is
A
crossing-over occurs only during prophase I of mitosis
B
the nuclear membrane never disappears during meiosis
C
homologous chromosomes pair up at the metaphase plate
D
centromeres do not split during mitosis
6) At the end of meiosis I, chromosome number is
A
unchanged
B
diploid
C
haploid
D
doubled
7) Gametes are
A
the same as zygotes
B
diploid
C
sex cells; eggs or sperm
D
regular body cells
8) When an egg and a sperm unite, what is formed?
A
a diploid zygote
B
an ovum
C
a haploid zygote
D
pollen
9) Crossing-over
A
results in new combinations of genetic material
B
is a very rare event
C
is dangerous to the species and corrected by special enzymes
D
occurs during metaphase II of meiosis
10) One difference between asexual and sexual reproduction is
A
sexual reproduction requires egg and sperm
B
sexual reproduction introduces less genetic variation into the species
C
asexual reproduction produces offspring with new combinations of traits
D
asexual reproduction requires two parents
*select an answer for all questions
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