Question 1

match the key event of meiosis with the stages listed below.
I. Prophase I V. Prophase II
II. Metaphase I VI. Metaphase II
III. Anaphase I VII. Anaphase II
IV. Telophase I VIII. Telophase II
-Centromeres of sister chromatids disjoin and chromatids separate.

Accepted Answer

A)   III
B)   IV
C)   V
D)   VIIE) C) and D)
F) None of the above

Question 2

Which of the following statements is correct regarding the human X chromosomes?

Accepted Answer

A)   It is present in every somatic cell of males and females.
B)   It is the same size as other chromosomes and has the same number of genes.
C)   It carries genes that determine an individual's biological sex.
D)   It is referred to as an autosome.E) A) and D)
F) None of the above C

Question 3

Which of the following processes occurs when homologous chromosomes cross over in meiosis I?

Accepted Answer

A)   Two sister chromatids get tangled, resulting in one re-sequencing its DNA.
B)   Two sister chromatids exchange identical pieces of DNA.
C)   Corresponding segments of non-sister chromatids are exchanged.
D)   Maternal alleles are "corrected" to be like paternal alleles and vice versa.E) A) and C)
F) B) and C)

Question 4

-Which diagram represents anaphase II of meiosis?

Accepted Answer

A)   I
B)   III
C)   IV
D)   VE) A) and B)
F) All of the above

Question 5

Which of the following processes occurs in meiosis but not in mitosis?

Accepted Answer

A)   chromosome replication
B)   synapsis of chromosomes
C)   alignment of chromosomes at the equator
D)   condensation of chromosomesE) All of the above
F) A) and B) B

Question 6

How does natural selection apply to sexual reproduction as opposed to asexual reproduction?

Accepted Answer

A)   Sexual reproduction results in many new gene combinations, some of which will lead to differential reproduction.
B)   Sexual reproduction results in the greatest number of new mutations.
C)   Sexual reproduction allows the greatest number of offspring to be produced.
D)   Sexual reproduction utilises far less energy than asexual reproduction.E) A) and C)
F) C) and D)

Question 7

Independent assortment of chromosomes is a result of which of the following processes?

Accepted Answer

A)   The random way each pair of homologous chromosomes lines up at the metaphase plate during meiosis I.
B)   The random combinations of eggs and sperm during fertilisation.
C)   The random distribution of the sister chromatids to the two daughter cells during anaphase II.
D)   The diverse combination of alleles that may be found within any given chromosome.E) A) and B)
F) A) and C)

Question 8

Which of the following statements correctly describes a karyotype?

Accepted Answer

A)   It is a display of all of the cell types in an organism.
B)   It is an organised image of a cell's chromosomes.
C)   It reveals the appearance of an organism.
D)   It is a display of a cell's mitotic stages.E) A) and D)
F) B) and C)

Question 9

Which of the following statements describes an example of alternation of generations?

Accepted Answer

A)   A grandparent and grandchild each have dark hair, but the parent has blonde hair.
B)   A diploid plant (sporophyte)  produces a spore by meiosis that gives rise to a multicellular, haploid pollen grain (gametophyte) .
C)   A diploid animal produces gametes by meiosis, and the gametes undergo fertilisation to produce a diploid zygote.
D)   A haploid mushroom produces gametes by mitosis, and the gametes undergo fertilisation, which is immediately followed by meiosis.E) A) and C)
F) None of the above

Question 10

During which of the following processes does independent assortment of chromosomes occur?

Accepted Answer

A)   in meiosis I only
B)   in meiosis II only
C)   in mitosis and meiosis I
D)   in mitosis and meiosis IIE) A) and C)
F) B) and C) A

Question 11

A female with a paternal set of one orange and one long gene chromosome and a maternal set comprised of one blue and one short gene chromosome would be expected to produce which of the following types of eggs after meiosis?

Accepted Answer

A)   All eggs will have maternal types of gene combinations.
B)   All eggs will have paternal types of gene combinations.
C)   Half the eggs will have maternal and half will have paternal combinations.
D)   Each egg has a one-fourth chance of having either blue long, blue short, orange long, or orange short combinations.E) B) and D)
F) B) and C)

Question 12

Asexual reproduction occurs during which of the following processes?

Accepted Answer

A)   meiosis
B)   mitosis
C)   fertilisation
D)   the exchange of chromosomes between organisms of different speciesE) A) and B)
F) B) and C)

Question 13

Which of the following processes facilitates the fastest way for organisms to adapt to a changing environment?

Accepted Answer

A)   mutation
B)   asexual reproduction
C)   sexual reproduction
D)   mitosisE) None of the above
F) A) and D)

Question 14

If a horticulturist breeding gardenias succeeds in having a single plant with a particularly desirable set of traits, which of the following would be the most probable and efficient route to establishing a line of such plants?

Accepted Answer

A)   Backtrack through their previous experiments to obtain another plant with the same traits.
B)   Breed this plant with another plant with much weaker traits.
C)   Clone the plant.
D)   Force the plant to self-pollinate to obtain an identical one.E) A) and C)
F) None of the above

Question 15

During which of the following phases of meiosis do centromeres split and sister chromatids migrate to opposite poles of the cell?

Accepted Answer

A)   anaphase I
B)   telophase I
C)   anaphase II
D)   telophase IIE) B) and D)
F) A) and B)

Question 16

-Which diagram represents anaphase I of meiosis?

Accepted Answer

A)   I
B)   II
C)   IV
D)   VE) A) and B)
F) None of the above

Question 17

Which of the following processes occurs in a plant's sexual life cycle?

Accepted Answer

A)   sporophytes produce gametes by meiosis
B)   gametophytes produce gametes by mitosis
C)   gametophytes produce gametes by meiosis
D)   sporophytes produce gametes by mitosisE) All of the above
F) A) and B)

Question 18

The somatic cells of a privet shrub each contain a total of 46 chromosomes. How do the chromosomes of this plant differ from the chromosomes of humans, who also have a total of 46?

Accepted Answer

A)   Privet shrub cells cannot reproduce sexually.
B)   Privet shrub sex cells have chromosomes that can synapse with human chromosomes in the laboratory.
C)   Genes of privet shrub chromosomes are significantly different than those in humans.
D)   Privet shrubs must be metabolically more like animals than like other shrubs.E) C) and D)
F) A) and C)

Question 19

Which of the following characteristics do homologous chromosomes exhibit?

Accepted Answer

A)   They carry information for different traits.
B)   They carry information for the same traits.
C)   They carry the same alleles.
D)   They align on the metaphase plate in meiosis II.E) B) and C)
F) None of the above

Question 20

Genetic variation leads to genetic diversity in populations and is the raw material for evolution. Biological systems have multiple processes, such as reproduction, that affect genetic variation. They are evolutionarily conserved and shared by various organisms. Which of the following statements best represents the connection between reproduction and evolution?

Accepted Answer

A)   Plants that use sexual reproduction are rare since this type of reproduction in plants does not contribute to genetic diversity.
B)   In order to increase genetic diversity for evolution in sexually reproducing organisms, mutations must occur in the zygote after fertilisation.
C)   Since prokaryotic organisms reproduce asexually, there is no mechanism for them to add genetic diversity for evolution.
D)   Sexual reproduction increases genetic variation because random mutations can be shuffled between organisms.E) A) and B)
F) A) and C)

Exam 13: Meiosis and Sexual Life Cycles

match the key event of meiosis with the stages listed below. I. Prophase I V. Prophase II II. Metaphase I VI. Metaphase II III. Anaphase I VII. Anaphase II IV. Telophase I VIII. Telophase II -Centromeres of sister chromatids disjoin and chromatids separate.

Correct Answer
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Which of the following statements is correct regarding the human X chromosomes?

Correct Answer
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C

Which of the following processes occurs when homologous chromosomes cross over in meiosis I?

Correct Answer
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-Which diagram represents anaphase II of meiosis?

Correct Answer
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Which of the following processes occurs in meiosis but not in mitosis?

Correct Answer
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B

How does natural selection apply to sexual reproduction as opposed to asexual reproduction?

Correct Answer
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Independent assortment of chromosomes is a result of which of the following processes?

Correct Answer
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Which of the following statements correctly describes a karyotype?

Correct Answer
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Which of the following statements describes an example of alternation of generations?

Correct Answer
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During which of the following processes does independent assortment of chromosomes occur?

Correct Answer
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A

A female with a paternal set of one orange and one long gene chromosome and a maternal set comprised of one blue and one short gene chromosome would be expected to produce which of the following types of eggs after meiosis?

Correct Answer
verified

Asexual reproduction occurs during which of the following processes?

Correct Answer
verified

Which of the following processes facilitates the fastest way for organisms to adapt to a changing environment?

Correct Answer
verified

If a horticulturist breeding gardenias succeeds in having a single plant with a particularly desirable set of traits, which of the following would be the most probable and efficient route to establishing a line of such plants?

Correct Answer
verified

During which of the following phases of meiosis do centromeres split and sister chromatids migrate to opposite poles of the cell?

Correct Answer
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-Which diagram represents anaphase I of meiosis?

Correct Answer
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Which of the following processes occurs in a plant's sexual life cycle?

Correct Answer
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The somatic cells of a privet shrub each contain a total of 46 chromosomes. How do the chromosomes of this plant differ from the chromosomes of humans, who also have a total of 46?

Correct Answer
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Which of the following characteristics do homologous chromosomes exhibit?

Correct Answer
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Exam 13: Meiosis and Sexual Life Cycles

match the key event of meiosis with the stages listed below. I. Prophase I V. Prophase II II. Metaphase I VI. Metaphase II III. Anaphase I VII. Anaphase II IV. Telophase I VIII. Telophase II -Centromeres of sister chromatids disjoin and chromatids separate.

Correct AnswerverifiedShow Answer

Which of the following statements is correct regarding the human X chromosomes?

Correct AnswerverifiedC

Which of the following processes occurs when homologous chromosomes cross over in meiosis I?

Correct AnswerverifiedShow Answer

-Which diagram represents anaphase II of meiosis?

Correct AnswerverifiedShow Answer

Which of the following processes occurs in meiosis but not in mitosis?

Correct AnswerverifiedB

How does natural selection apply to sexual reproduction as opposed to asexual reproduction?

Correct AnswerverifiedShow Answer

Independent assortment of chromosomes is a result of which of the following processes?

Correct AnswerverifiedShow Answer

Which of the following statements correctly describes a karyotype?

Correct AnswerverifiedShow Answer

Which of the following statements describes an example of alternation of generations?

Correct AnswerverifiedShow Answer

During which of the following processes does independent assortment of chromosomes occur?

Correct AnswerverifiedA

A female with a paternal set of one orange and one long gene chromosome and a maternal set comprised of one blue and one short gene chromosome would be expected to produce which of the following types of eggs after meiosis?

Correct AnswerverifiedShow Answer

Asexual reproduction occurs during which of the following processes?

Correct AnswerverifiedShow Answer

Which of the following processes facilitates the fastest way for organisms to adapt to a changing environment?

Correct AnswerverifiedShow Answer

If a horticulturist breeding gardenias succeeds in having a single plant with a particularly desirable set of traits, which of the following would be the most probable and efficient route to establishing a line of such plants?

Correct AnswerverifiedShow Answer

During which of the following phases of meiosis do centromeres split and sister chromatids migrate to opposite poles of the cell?

Correct AnswerverifiedShow Answer

-Which diagram represents anaphase I of meiosis?

Correct AnswerverifiedShow Answer

Which of the following processes occurs in a plant's sexual life cycle?

Correct AnswerverifiedShow Answer

The somatic cells of a privet shrub each contain a total of 46 chromosomes. How do the chromosomes of this plant differ from the chromosomes of humans, who also have a total of 46?

Correct AnswerverifiedShow Answer

Which of the following characteristics do homologous chromosomes exhibit?

Correct AnswerverifiedShow Answer

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C

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B

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A

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