Question 1

During _______________ the homologous chromosome pairs separate in a random fashion leading to genetic diversity among the offspring.

Accepted Answer

A)  independent assortment
B)  metaphase
C)  anaphase II
D)  mitosisE) A) and B)
F) A) and C)

Question 2

Which of the following statements is correct about the chromosomal position during mitosis and meiosis?

Accepted Answer

A)  During metaphase of mitosis the duplicated chromosomes are at the metaphase plate while during metaphase I of meiosis the bivalents are present at the metaphase plate
B)  During metaphase I of meiosis the duplicated chromosomes are at the metaphase plate while during metaphase of mitosis the bivalents are present at the metaphase plate
C)  During metaphase of mitosis the homologues separate while during metaphase I of meiosis the sister chromatids separate
D)  During metaphase I of meiosis the homologues separate while during metaphase of mitosis the sister chromatids separateE) None of the above
F) B) and C)

Question 3

The genus Lacerta is composed of a species of lizards that are female and do not mate.They undergo "endomitosis" where one extra chromosome replication results in a tetraploid cell before meiosis begins.Normal female 2n offspring result without fertilization.What change(s) from regular meiosis (in preparation for fertilization) would be required to produce this system?

Accepted Answer

A)  The haploid cell products of meiosis II fuse.
B)  Meiosis stops after meiosis I and does not proceed to meiosis II.
C)  Cytokinesis does not follow "endomitosis" that results in a tetraploid cell.
D)  During anaphase II,the sister centromeres fail to separate and daughter cells will not form.
E)  During anaphase II,the daughter chromosomes are non-disjunctive and are all pulled to one daughter cell.F) A) and B)
G) A) and C)

Question 4

Homologous chromosomes are similar in all of these characteristics EXCEPT:

Accepted Answer

A)  similar in size.
B)  carry the same alleles for all traits.
C)  carry genes for the same traits.
D)  similar in shape and location of the centromere.E) C) and D)
F) All of the above

Question 5

Jacobs Syndrome,XYY,results from nondisjunction during spermatogenesis.

Accepted Answer

A) True 
 B)False

Question 6

During which phase of mitosis and meiosis will the state of the chromosome be the same?

Accepted Answer

A)  Anaphase II and Anaphase
B)  Prophase II and Prophase
C)  Metaphase I and Metaphase
D)  Telophase I and TelophaseE) A) and B)
F) B) and C)

Question 7

Which does NOT occur in meiosis?

Accepted Answer

A)  two daughter cells at completion
B)  four daughter cells at completion
C)  two nuclear divisions
D)  formation of bivalentsE) C) and D)
F) B) and D)

Question 8

A lattice holds the members of a bivalent together in such a way that the RNA of the non-sister chromatids is aligned.

Accepted Answer

A) True 
 B)False

Question 9

In human females,when is meiosis II completed?

Accepted Answer

A)  at ovulation
B)  immediately after the sperm penetration of the secondary oocyte
C)  immediately after the sperm penetrates the primary oocyte
D)  None of the choices are correct.E) B) and C)
F) C) and D)

Question 10

The correct number of chromosomes in a species is known as aneuploidy

Accepted Answer

A) True 
 B)False

Question 11

It is estimated that an average of two or three cross-overs occur per human chromosome.

Accepted Answer

A) True 
 B)False

Question 12

Why do polar bodies form?

Accepted Answer

A)  They nurse the egg as it leaves the follicle.
B)  This is extra chromosomal material representing the X chromosome in each female cell.
C)  They orient the sperm toward the egg.
D)  They allow a reduction in chromosomes while preserving most of the cytoplasm for one egg.
E)  They orient the egg for penetration by the sperm.F) C) and D)
G) A) and B)

Question 13

The following picture depicts which of the following changes in chromosome structure.

Accepted Answer

A)  deletion
B)  duplication
C)  translocation
D)  aneuploidyE) C) and D)
F) B) and D)

Question 14

During which stage of meiosis does the homologue separation occur?

Accepted Answer

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

Exam 10: Meiosis and Sexual Reproduction

Which does NOT occur in meiosis?

Correct Answer
verified

Why do polar bodies form?

Correct Answer
verified

Correct Answer
verified

During which stage of meiosis does the homologue separation occur?

Correct Answer
verified

In human females,when is meiosis II completed?

Correct Answer
verified

A lattice holds the members of a bivalent together in such a way that the RNA of the non-sister chromatids is aligned.

Correct Answer
verified

The following picture depicts which of the following changes in chromosome structure.

Correct Answer
verified

Which of the following statements is correct about the chromosomal position during mitosis and meiosis?

Correct Answer
verified

During _______________ the homologous chromosome pairs separate in a random fashion leading to genetic diversity among the offspring.

Correct Answer
verified

During which phase of mitosis and meiosis will the state of the chromosome be the same?

Correct Answer
verified

Homologous chromosomes are similar in all of these characteristics EXCEPT:

Correct Answer
verified

Jacobs Syndrome,XYY,results from nondisjunction during spermatogenesis.

Correct Answer
verified

It is estimated that an average of two or three cross-overs occur per human chromosome.

Correct Answer
verified

The correct number of chromosomes in a species is known as aneuploidy

Correct Answer
verified

Exam 10: Meiosis and Sexual Reproduction

Which does NOT occur in meiosis?

Correct AnswerverifiedShow Answer

Why do polar bodies form?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

During which stage of meiosis does the homologue separation occur?

Correct AnswerverifiedShow Answer

In human females,when is meiosis II completed?

Correct AnswerverifiedShow Answer

A lattice holds the members of a bivalent together in such a way that the RNA of the non-sister chromatids is aligned.

Correct AnswerverifiedShow Answer

The following picture depicts which of the following changes in chromosome structure.

Correct AnswerverifiedShow Answer

Which of the following statements is correct about the chromosomal position during mitosis and meiosis?

Correct AnswerverifiedShow Answer

During _______________ the homologous chromosome pairs separate in a random fashion leading to genetic diversity among the offspring.

Correct AnswerverifiedShow Answer

During which phase of mitosis and meiosis will the state of the chromosome be the same?

Correct AnswerverifiedShow Answer

Homologous chromosomes are similar in all of these characteristics EXCEPT:

Correct AnswerverifiedShow Answer

Jacobs Syndrome,XYY,results from nondisjunction during spermatogenesis.

Correct AnswerverifiedShow Answer

It is estimated that an average of two or three cross-overs occur per human chromosome.

Correct AnswerverifiedShow Answer

The correct number of chromosomes in a species is known as aneuploidy

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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