Question 1

In meiosis, a doubling of the amount of DNA in each chromosome occurs in

Accepted Answer

A)   interphase.
B)   prophase I.
C)   prophase II.
D)   telophase I.
E)   telophase II.

Question 2

One difference between meiosis and mitosis is that in meiosis

Accepted Answer

A)   the chromosomal number is increased.
B)   two cells are produced.
C)   homologous chromosomes pair.
D)   there are three sequential nuclear divisions.
E)   six identical cells result.

Question 3

The spindle (spindle fibers)

Accepted Answer

A)   function during mitosis to pull sister chromatids to opposite poles.
B)   is composed of microtubules.
C)   functions during meiosis I to pull the members of homologous pairs to opposite poles.
D)   functions during meiosis II to pull the sister chromatids to opposite poles.
E)   Consists of microtubules and functions in all of the ways listed in the other answer choices.

Question 4

________ is common to all organisms that reproduce sexually.

Accepted Answer

A)   Meiosis
B)   Formation of haploid spores
C)   Formation of haploid gametes directly from meiosis
D)   Formation of a gametophyte generation
E)   All of these are common to all sexually reproducing organisms.

Question 5

Which of the following statements about mitosis is NOT true?

Accepted Answer

A)   Mitosis can result in the production of cells for sexual reproduction.
B)   Mitosis can produce gametes.
C)   Mitosis can result in asexual reproduction.
D)   Mitosis can only lead to growth and development of the individual.
E)   Mitosis can produce genetic mutations.

Question 6

In meiosis, centromeres divide separating chromatids at the beginning of

Accepted Answer

A)   metaphase I.
B)   telophase II.
C)   prophase II.
D)   anaphase II.
E)   telophase I. D

Question 7

Which of the following statements pertaining to sexual reproduction is true?

Accepted Answer

A)   The first cell of a sporophyte generation is normally a gamete.
B)   The change from a gametophyte generation to a sporophyte generation occurs immediately after meiosis.
C)   The offspring are nearly always identical with the parents.
D)   The first cell of a gametophyte generation is normally a spore.
E)   Asexual cells fuse in pairs. D

Question 8

Crossing over during meiosis causes greater reshuffling of genes than just meiosis without crossing over.

Accepted Answer

A) True 
 B)False

Question 9

In which phase of meiosis does crossing-over occur?

Accepted Answer

A)   prophase I
B)   prophase II
C)   metaphase I
D)   metaphase II
E)   anaphase II

Question 10

Chromosomes line up along equators in both metaphase I and metaphase II.

Accepted Answer

A) True 
 B)False

Question 11

Two chromosomes that are morphologically similar, but potentially carry different versions of each gene are referred to as ________.

Accepted Answer

A)   chromatids
B)   centromeres
C)   homologues
D)   spindle fiber elements
E)   gene pairs

Question 12

The change from a ________ occurs as a result of meiosis.

Accepted Answer

A)   zygote to a sporophyte
B)   gametophyte to a sporophyte
C)   sporophyte to gametophyte
D)   gametophyte to gamete
E)   gamete to zygote

Question 13

Haploid cells have how many sets of chromosomes?

Accepted Answer

A)   ½
B)   1
C)   2
D)   more than 3
E)   variable

Question 14

Exchange of corresponding segments of chromatids of homologous chromosomes occurs in a process called

Accepted Answer

A)   homologous pairing.
B)   cytokinesis.
C)   crossing-over.
D)   centromere division.
E)   backcrossing.

Question 15

Multicellular forms are found in both phases of an alternation of generation life cycle.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following pairs of cells do NOT have identical chromosome numbers in a given species of plant?

Accepted Answer

A)   egg and sperm
B)   spore mother cell and zygote
C)   spore and gamete
D)   sperm and spore
E)   spore and zygote

Question 17

In which stage of meiosis do homologous chromosome pairs separate?

Accepted Answer

A)   prophase II
B)   telophase I
C)   anaphase I
D)   anaphase II
E)   metaphase II

Question 18

In meiosis

Accepted Answer

A)   the four (4)  cells produced are identical to one another in all respects
B)   cells produced by meiosis always function as gametes.
C)   the process doubles the chromosome number of the plant.
D)   only the first division resembles mitosis.
E)   the process allows for a contribution of genes from both parents.

Question 19

Chiasmata occur during anaphase I.

Accepted Answer

A) True 
 B)False

Question 20

The sex organs in which gametes are produced are formed on gametophytes.

Accepted Answer

A) True 
 B)False  True

Exam 12: Meiosis and Alternation of Generation

In meiosis, a doubling of the amount of DNA in each chromosome occurs in

Correct AnswerverifiedShow Answer

One difference between meiosis and mitosis is that in meiosis

Correct AnswerverifiedShow Answer

The spindle (spindle fibers)

Correct AnswerverifiedShow Answer

________ is common to all organisms that reproduce sexually.

Correct AnswerverifiedShow Answer

Which of the following statements about mitosis is NOT true?

Correct AnswerverifiedShow Answer

In meiosis, centromeres divide separating chromatids at the beginning of

Correct AnswerverifiedD

Which of the following statements pertaining to sexual reproduction is true?

Correct AnswerverifiedD

Crossing over during meiosis causes greater reshuffling of genes than just meiosis without crossing over.

Correct AnswerverifiedShow Answer

In which phase of meiosis does crossing-over occur?

Correct AnswerverifiedShow Answer

Chromosomes line up along equators in both metaphase I and metaphase II.

Correct AnswerverifiedShow Answer

Two chromosomes that are morphologically similar, but potentially carry different versions of each gene are referred to as ________.

Correct AnswerverifiedShow Answer

The change from a ________ occurs as a result of meiosis.

Correct AnswerverifiedShow Answer

Haploid cells have how many sets of chromosomes?

Correct AnswerverifiedShow Answer

Exchange of corresponding segments of chromatids of homologous chromosomes occurs in a process called

Correct AnswerverifiedShow Answer

Multicellular forms are found in both phases of an alternation of generation life cycle.

Correct AnswerverifiedShow Answer

Which of the following pairs of cells do NOT have identical chromosome numbers in a given species of plant?

Correct AnswerverifiedShow Answer

In which stage of meiosis do homologous chromosome pairs separate?

Correct AnswerverifiedShow Answer

In meiosis

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Chiasmata occur during anaphase I.

Correct AnswerverifiedShow Answer

The sex organs in which gametes are produced are formed on gametophytes.

Correct AnswerverifiedTrue

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D

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