Question 1

The stage of meiosis that makes descendant cells haploid is ____.

Accepted Answer

A)  prophase I
B)  prophase II
C)  anaphase I
D)  anaphase II
E)  metaphase IF) C) and E)
G) B) and E)

Question 2

Use the accompanying figure to match the cells in the figure to the correct phase in meiosis. The top figure panel is phases of meiosis I; the bottom panel is phases of meiosis II.
-anaphase I

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  EF) FG) GH) HI) B) and D)
J) A) and F)

Question 3

The process of crossing over ____.

Accepted Answer

A)  generally results in binary fission
B)  involves nucleoli
C)  involves breakages and exchanges being made between sister chromatids
D)  involves breakages and exchanges being made between homologous chromosomes
E)  involves random assortment of homologues during metaphaseF) D) and E)
G) B) and D)

Question 4

How do the products of meiosis differ from those of mitosis?

Accepted Answer

By mitosis and cytoplasmic division, one...

Question 5

Match the following stages with the corresponding chromosome number in human cells.
-daughter cell after mitosis

Accepted Answer

A)  23, haploid
B)  23, diploid
C)  46, haploid
D)  46, diploidE) A) and B)
F) A) and C)

Question 6

If meiosis did not occur in sexually reproducing organisms, ____.

Accepted Answer

A)  the zygote would be haploid
B)  gametes would be haploid
C)  mitosis would be sufficient
D)  the chromosome number would double in each generation
E)  eggs would be diploid but sperm would be haploidF) All of the above
G) B) and E)

Question 7

Match each term with the correct description.
-interphase

Accepted Answer

A)  DNA duplication occurs in this phase.
B)  Homologous chromosomes condense, pair up, and swap segments.
C)  Homologous chromosome pairs align on the equator.
D)  Sister chromatids separate and move to opposite poles.
E)  A nuclear envelope forms around each set of chromosomes to produce four haploid (n)  nuclei.F) Homologous chromosomes separate and move to opposite poles.G) As in mitosis, duplicated chromosomes align on the equator.H) Two nuclei formed; each has a complete set of chromosomes.I) Spindle formation in two cells.J) F) and H)
K) B) and H)

Question 8

Use the accompanying figure to match the cells in the figure to the correct phase in meiosis. The top figure panel is phases of meiosis I; the bottom panel is phases of meiosis II.
-telophase I?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  EF) FG) GH) HI) E) and H)
J) A) and B)

Question 9

Match the following stages with the corresponding chromosome number in human cells.
-zygote

Accepted Answer

A)  23, haploid
B)  23, diploid
C)  46, haploid
D)  46, diploidE) B) and D)
F) A) and B)

Question 10

Sexual reproduction ____.

Accepted Answer

A)  leads to uniform characteristics in a population
B)  results in new combinations of genetic traits
C)  produces genetic clones
D)  requires less tissue differentiation than asexual reproduction
E)  only requires mitosisF) B) and E)
G) B) and C)

Question 11

Which cell type contains only one set of chromosomes?

Accepted Answer

A)  zygote
B)  somatic cells
C)  gamete
D)  diploid
E)  skin cellsF) B) and C)
G) B) and D)

Question 12

Homologous chromosomes separate during ____.

Accepted Answer

A)  anaphase I
B)  anaphase II
C)  metaphase I
D)  metaphase II
E)  telophase IIF) A) and B)
G) A) and E)

Question 13

Meiosis ____ the parental chromosome number.

Accepted Answer

A)  doubles
B)  halves
C)  maintains
D)  mixes up
E)  quadruplesF) All of the above
G) A) and E)

Question 14

Crossing over is one of the most important events in meiosis because ____.

Accepted Answer

A)  it produces new combinations of alleles on chromosomes
B)  homologous chromosomes must be separated into different daughter cells
C)  the number of chromosomes allotted to each daughter cell must be halved
D)  homologous chromatids must be separated into different daughter cells
E)  it decreases genetic diversityF) A) and B)
G) A) and E)

Question 15

Match the following stages with the corresponding chromosome number in human cells.
-daughter cell after meiosis II

Accepted Answer

A)  23, haploid
B)  23, diploid
C)  46, haploid
D)  46, diploidE) C) and D)
F) B) and D)

Question 16

Crossing over mixes up ____.

Accepted Answer

A)  alleles on nonhomologous chromosomes
B)  alleles on homologous chromosomes
C)  zygotes
D)  chromosome number
E)  sister chromatidsF) B) and E)
G) B) and D)

Question 17

Use the accompanying figure to match the cells in the figure to the correct phase in meiosis. The top figure panel is phases of meiosis I; the bottom panel is phases of meiosis II.
-prophase I

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  EF) FG) GH) HI) D) and F)
J) B) and F)

Question 18

In asexual reproduction, new combinations of genes arise by ____.

Accepted Answer

A)  mutation
B)  random segregation of chromosomes into gametes
C)  random assortment of gametes
D)  crossing over
E)  random matingF) None of the above
G) B) and D)

Question 19

Which reproductive strategy would allow the most rapid adaptation to a changing environment?

Accepted Answer

A)  asexual reproduction
B)  sexual reproduction
C)  simultaneous sexual and asexual reproduction
D)  switching between sexual and asexual reproduction
E)  all of these strategies are equally adaptiveF) A) and D)
G) A) and C)

Question 20

What adaptation have the freshwater bdelloid rotifers used to allow them to acquire genetic diversity while reproducing only via asexual reproduction?

Accepted Answer

These rotifers can import genes from bac...

Exam 12: Meiosis and Sexual Reproduction

Match the following stages with the corresponding chromosome number in human cells. -zygote

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Use the accompanying figure to match the cells in the figure to the correct phase in meiosis. The top figure panel is phases of meiosis I; the bottom panel is phases of meiosis II. -prophase I

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In asexual reproduction, new combinations of genes arise by ____.

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Match each term with the correct description. -interphase

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Match the following stages with the corresponding chromosome number in human cells. -daughter cell after meiosis II

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If meiosis did not occur in sexually reproducing organisms, ____.

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The stage of meiosis that makes descendant cells haploid is ____.

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Crossing over is one of the most important events in meiosis because ____.

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Sexual reproduction ____.

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What adaptation have the freshwater bdelloid rotifers used to allow them to acquire genetic diversity while reproducing only via asexual reproduction?

Correct AnswerverifiedThese rotifers can import genes from bac...View AnswerShow Answer

Which reproductive strategy would allow the most rapid adaptation to a changing environment?

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How do the products of meiosis differ from those of mitosis?

Correct AnswerverifiedBy mitosis and cytoplasmic division, one...View AnswerShow Answer

Crossing over mixes up ____.

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Which cell type contains only one set of chromosomes?

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The process of crossing over ____.

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Use the accompanying figure to match the cells in the figure to the correct phase in meiosis. The top figure panel is phases of meiosis I; the bottom panel is phases of meiosis II. -anaphase I

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Homologous chromosomes separate during ____.

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Match the following stages with the corresponding chromosome number in human cells. -daughter cell after mitosis

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Use the accompanying figure to match the cells in the figure to the correct phase in meiosis. The top figure panel is phases of meiosis I; the bottom panel is phases of meiosis II. -telophase I?

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Meiosis ____ the parental chromosome number.

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These rotifers can import genes from bac...
View Answer

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By mitosis and cytoplasmic division, one...
View Answer

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