Question 1

Metaphase II is more similar to metaphase of mitosis than to metaphase I because

Accepted Answer

A)   in metaphase I, tetrads align together at the spindle equator.
B)   in metaphase II, tetrads align separately at the spindle equator.
C)   in metaphase of mitosis, tetrads align separately at the spindle equator.
D)   in metaphase II, dyads align separately at the spindle equator.
E)   in metaphase I, dyads align separately at the spindle equator.F) A) and B)
G) B) and D)

Question 2

Which of the following is not a symptom of Down syndrome?

Accepted Answer

A)   short stature
B)   eyelid fold
C)   stubby fingers
D)   tall stature
E)   fissured tongueF) B) and E)
G) A) and B)

Question 3

In each gamete following telophase II, how many copies of each gene is/are present?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   8F) B) and D)
G) A) and E)

Question 4

Crossing-over between sister chromatids does not result in recombination of genetic material, while crossing-over between nonsister chromatids does because

Accepted Answer

A)   sister chromatids have the same alleles, while nonsister chromatids have different ones.
B)   sister chromatids have the same genes, while nonsister chromatids have different ones.
C)   sister chromatids have the same alleles but different genes, while nonsister chromatids have different alleles but the same genes.
D)   nonsister chromatids have the same alleles, while sister chromatids have different ones.
E)   nonsister chromatids have the same genes, while sister chromatids have different ones.F) D) and E)
G) A) and D)

Question 5

Which of the following statements is true?

Accepted Answer

A)   Chromosomes are classified into two categories: the sex chromosomes that determine gender and autosomes that determine non-gender related traits.
B)   Homologous chromosomes differ in banding patterns, the traits they code for, and size.
C)   While sex chromosomes determine different genders, they look the same until they are stained.
D)   In humans all 46 chromosomes have an identical match called the homologue.
E)   Chromosomes are classified into two categories: autosomes that determine gender and the sex chromosomes that determine non-gender related traits.F) A) and B)
G) B) and C)

Question 6

A tetrad is composed of

Accepted Answer

A)   two chromosomes with two sister chromatids each.
B)   two sister chromatids with separate centromeres.
C)   four chromosomes with two sister chromatids each.
D)   four sister chromatids, each with its own centromere.
E)   four sister chromatids attached at a common centromere.F) A) and C)
G) B) and C)

Question 7

Which of the following lists is in the correct order, from the least inclusive to the most inclusive?

Accepted Answer

A)   allele - gene - chromosome
B)   gene - allele - chromosome
C)   allele - chromosome - gene
D)   chromosome - gene - allele
E)   gene - chromosome - alleleF) A) and B)
G) A) and C)

Question 8

The failure of sister chromatids to separate would result in how many normal gametes?

Accepted Answer

A)   0
B)   1
C)   2
D)   3
E)   4F) A) and D)
G) A) and B)

Question 9

An individual with the karyotype 48, XYYY would have how many Barr bodies?

Accepted Answer

A)   0
B)   1
C)   2
D)   3
E)   4F) C) and D)
G) B) and E)

Question 10

Chromosomes that occur in pairs and code for the same traits are called ________ chromosomes; these do not include the ________ chromosomes, which code for gender.

Accepted Answer

A)   homologous; autosomes
B)   autosomes; homologous
C)   diploid; haploid
D)   homologous: sex
E)   sex; autosomesF) All of the above
G) A) and B)

Question 11

Which of the following processes does not contribute to creating genetic variability in the offspring?

Accepted Answer

A)   crossing-over
B)   independent assortment of chromosomes
C)   pairing of homologous chromosomes
D)   interkinesis
E)   having different alleles of the same geneF) A) and D)
G) B) and E)

Question 12

An individual with Swyer syndrome 46, XY)  differs from an individual with Klinefelter syndrome 47, XXY)  because

Accepted Answer

A)   an individual with Swyer syndrome has a Barr body, while an individual with Klinefelter syndrome does not.
B)   an individual with Klinefelter syndrome has a functional SRY gene on his Y chromosome, whereas an individual with Swyer syndrome does not.
C)   both individuals have a functional SRY gene, but the extra X chromosome makes the individual with Klinefelter syndrome appear female.
D)   neither individual has a functional SRY gene, but the X chromosome of the individual with Swyer syndrome has a functional SRY and appears male.
E)   an individual with Swyer syndrome lacks a functional SRY gene, but appears male because it has moved to the X chromosome as in an individual with Klinefelter syndrome.F) A) and C)
G) A) and E)

Question 13

Which of the following phases results in separation of sister chromatids into daughter chromosomes?

Accepted Answer

A)   anaphase of mitosis
B)   anaphase I, anaphase II, and anaphase of mitosis
C)   anaphase I and anaphase II
D)   anaphase I and anaphase of mitosis
E)   anaphase II and anaphase of mitosisF) B) and D)
G) B) and C)

Exam 9: Meiosis and the Genetic Basis of Sexual Reproduction

An individual with Swyer syndrome 46, XY) differs from an individual with Klinefelter syndrome 47, XXY) because

Correct Answer
verified

In each gamete following telophase II, how many copies of each gene is/are present?

Correct Answer
verified

Which of the following phases results in separation of sister chromatids into daughter chromosomes?

Correct Answer
verified

The failure of sister chromatids to separate would result in how many normal gametes?

Correct Answer
verified

Which of the following processes does not contribute to creating genetic variability in the offspring?

Correct Answer
verified

Metaphase II is more similar to metaphase of mitosis than to metaphase I because

Correct Answer
verified

Which of the following is not a symptom of Down syndrome?

Correct Answer
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Chromosomes that occur in pairs and code for the same traits are called chromosomes; these do not include the chromosomes, which code for gender.

Correct Answer
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Which of the following statements is true?

Correct Answer
verified

Which of the following lists is in the correct order, from the least inclusive to the most inclusive?

Correct Answer
verified

An individual with the karyotype 48, XYYY would have how many Barr bodies?

Correct Answer
verified

Crossing-over between sister chromatids does not result in recombination of genetic material, while crossing-over between nonsister chromatids does because

Correct Answer
verified

A tetrad is composed of

Correct Answer
verified

Exam 9: Meiosis and the Genetic Basis of Sexual Reproduction

An individual with Swyer syndrome 46, XY) differs from an individual with Klinefelter syndrome 47, XXY) because

Correct AnswerverifiedShow Answer

In each gamete following telophase II, how many copies of each gene is/are present?

Correct AnswerverifiedShow Answer

Which of the following phases results in separation of sister chromatids into daughter chromosomes?

Correct AnswerverifiedShow Answer

The failure of sister chromatids to separate would result in how many normal gametes?

Correct AnswerverifiedShow Answer

Which of the following processes does not contribute to creating genetic variability in the offspring?

Correct AnswerverifiedShow Answer

Metaphase II is more similar to metaphase of mitosis than to metaphase I because

Correct AnswerverifiedShow Answer

Which of the following is not a symptom of Down syndrome?

Correct AnswerverifiedShow Answer

Chromosomes that occur in pairs and code for the same traits are called ________ chromosomes; these do not include the ________ chromosomes, which code for gender.

Correct AnswerverifiedShow Answer

Which of the following statements is true?

Correct AnswerverifiedShow Answer

Which of the following lists is in the correct order, from the least inclusive to the most inclusive?

Correct AnswerverifiedShow Answer

An individual with the karyotype 48, XYYY would have how many Barr bodies?

Correct AnswerverifiedShow Answer

Crossing-over between sister chromatids does not result in recombination of genetic material, while crossing-over between nonsister chromatids does because

Correct AnswerverifiedShow Answer

A tetrad is composed of

Correct AnswerverifiedShow Answer

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Chromosomes that occur in pairs and code for the same traits are called chromosomes; these do not include the chromosomes, which code for gender.

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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