Question 1

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 
A)  Prophase I 
B)  Prophase II 
C)  Metaphase I 
D)  Metaphase II 
E)  Anaphase II A

Question 2

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

Question 3

Fertilization involves fusion of spores.

Accepted Answer

A) True 
 B)False  False

Question 4

Spindle fibers begin to form and nucleoli disappear by the end of

Accepted Answer

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

Question 5

In which of the division II (equational division)phases of meiosis may two spindles become fully developed at right angles to the ones that had been formed during division I?

Accepted Answer

A)  Prophase II. 
B)  Metaphase II. 
C)  Anaphase II. 
D)  Telophase II. 
E)  None of these answers are correct. 
A)  Prophase II. 
B)  Metaphase II. 
C)  Anaphase II. 
D)  Telophase II. 
E)  None of these answers are correct.

Question 6

In meiosis, a spindle first becomes conspicuous and complete in

Accepted Answer

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

Question 7

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

Question 8

Any cell of a gametophyte generation is diploid.

Accepted Answer

A) True 
 B)False

Question 9

A chiasma is not produced during mitosis.

Accepted Answer

A) True 
 B)False

Question 10

In flowering plants, sexual reproduction leads to the production of ______________, the offspring for the next generation.

Accepted Answer

A)  genetically identical plants 
B)  seed 
C)  flowers 
D)  bulbs and corms 
E)  new shoots 
A)  genetically identical plants 
B)  seed 
C)  flowers 
D)  bulbs and corms 
E)  new shoots

Question 11

Sporophytes produce _____ by the process of meiosis.

Accepted Answer

A)  gametes 
B)  spores 
C)  vegetative cells 
D)  egg cells only 
E)  sperm cells 
A)  gametes 
B)  spores 
C)  vegetative cells 
D)  egg cells only 
E)  sperm cells

Question 12

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

Question 13

The cells of a sporophyte are diploid.

Accepted Answer

A) True 
 B)False

Question 14

A homologous chromosome pair has a total of two chromatids.

Accepted Answer

A) True 
 B)False

Question 15

In the life cycle of sexually reproducing plants, the diploid body is commonly referred to as the

Accepted Answer

A)  gametophyte. 
B)  egg or sperm. 
C)  meiocyte. 
D)  syngamy. 
E)  sporophyte. 
A)  gametophyte. 
B)  egg or sperm. 
C)  meiocyte. 
D)  syngamy. 
E)  sporophyte.

Question 16

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. 
A)  Prophase II. 
B)  Telophase I. 
C)  Anaphase I. 
D)  Anaphase II. 
E)  Metaphase II.

Question 17

Haploid cells have how many sets of chromosomes?

Accepted Answer

A)  ½ 
B)  1 
C)  2 
D)  More than 3 
E)  Variable sets of chromosomes 
A)  ½ 
B)  1 
C)  2 
D)  More than 3 
E)  Variable sets of chromosomes

Question 18

A plant that reproduces sexually cannot also reproduce asexually.

Accepted Answer

A) True 
 B)False

Question 19

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 given above. 
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 given above.

Question 20

The nuclear envelope disintegrates by the end of prophase I.

Accepted Answer

A) True 
 B)False

Exam 12: Meiosis and Alternation of Generation

In which phase of meiosis does crossing-over occur?

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

Fertilization involves fusion of spores.

Spindle fibers begin to form and nucleoli disappear by the end of

In which of the division II (equational division)phases of meiosis may two spindles become fully developed at right angles to the ones that had been formed during division I?

In meiosis, a spindle first becomes conspicuous and complete in

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

Any cell of a gametophyte generation is diploid.

A chiasma is not produced during mitosis.

In flowering plants, sexual reproduction leads to the production of ______________, the offspring for the next generation.

Sporophytes produce _____ by the process of meiosis.

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

The cells of a sporophyte are diploid.

A homologous chromosome pair has a total of two chromatids.

In the life cycle of sexually reproducing plants, the diploid body is commonly referred to as the

In which stage of meiosis do homologous chromosome pairs separate?

Haploid cells have how many sets of chromosomes?

A plant that reproduces sexually cannot also reproduce asexually.

The spindle (spindle fibers)

The nuclear envelope disintegrates by the end of prophase I.

What Is Plant Biology

The Nature of Life

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Water in Plants

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Domain Kingdombacteria, Domain King-Domarchaea, and Viruses

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Introduction to the Plant Kingdom: Bryophytes

The Seedless Vascular Plants: Ferns and Their Relatives

Introduction to Seed Plants: Gymnosperms

Seed Plants: Angiosperms

Flowering Plants and Civilization

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