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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
mitosis
B
interphase
C
cytokinesis
D
meiosis
2) If gametes were produced by mitosis, the zygote formed from their union would
A
have 1/2 the number of chromosomes as the parent's body cells.
B
have twice the number of chromosomes as the parent's body cells.
C
have the same the number of chromosomes as the parent's body cells.
D
have 4 times 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
60
B
45
C
30
D
15
4) The division that reduces chromosome number by 1/2 occurs during
A
Interphase
B
Meiosis I
C
Meiosis II
D
Mitosis
5) One difference between meiosis I and mitosis is
A
crossing-over occurs only during prophase I of mitosis
B
homologous chromosomes pair up at the metaphase plate
C
centromeres do not split during mitosis
D
the nuclear membrane never disappears during meiosis
6) At the end of meiosis I, chromosome number is
A
doubled
B
unchanged
C
haploid
D
diploid
7) Gametes are
A
the same as zygotes
B
sex cells; eggs or sperm
C
regular body cells
D
diploid
8) When an egg and a sperm unite, what is formed?
A
an ovum
B
a haploid zygote
C
a diploid zygote
D
pollen
9) Crossing-over
A
is a very rare event
B
is dangerous to the species and corrected by special enzymes
C
results in new combinations of genetic material
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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