Question 1

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

Accepted Answer

A) True 
 B)False  True

Question 2

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. 
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 3

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

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

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. 
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 6

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. 
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 7

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 8

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

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

________ 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. 
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 12

Chiasmata occur during anaphase I.

Accepted Answer

A) True 
 B)False

Question 13

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

Question 14

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

Question 15

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

Question 16

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. 
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 17

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 18

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 19

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

Accepted Answer

A) True 
 B)False

Question 20

Haploid cells have how many sets of chromosomes?

Accepted Answer

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

Exam 12: Meiosis and Alternation of Generation

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

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

In meiosis, centromeres divide separating chromatids at the beginning of

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

One difference between meiosis and mitosis is that in meiosis

The spindle (spindle fibers)

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

Which of the following statements about mitosis is NOT true?

In which phase of meiosis does crossing-over occur?

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

________ is common to all organisms that reproduce sexually.

Chiasmata occur during anaphase I.

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

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

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

In meiosis

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

In which stage of meiosis do homologous chromosome pairs separate?

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

Haploid cells have how many sets of chromosomes?

What Is Plant Biology

The Nature of Life

Cells

Tissues

Roots and Soils

Stems

Leaves

Flowers, Fruits, and Seeds

Water in Plants

Plant Metabolism

Growth

Genetics

Plant Breeding and Propagation

Evolution

Plant Names and Classification

Domain Kingdom Bacteria, Domain Kingdom Archaea, and Viruses

Kingdom Protista

Kingdom Fungi

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

Ecology

Biomes

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