Question 1

______________ 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 2

At the end of Meiosis I, the total number of chromosomes in each daughter cell is ___________.

Accepted Answer

A)  the same as the mother cell 
B)  doubled (2x the mother cell) 
C)  four times the number of the mother cell 
D)  reduced by ½ from the number of the mother cell 
E)  none of these 
A)  the same as the mother cell 
B)  doubled (2x the mother cell) 
C)  four times the number of the mother cell 
D)  reduced by ½ from the number of the mother cell 
E)  none of these

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.

Question 4

Polyploid plants have __________ sets of chromosomes.

Accepted Answer

A)  ½ 
B)  1 
C)  2 
D)  3 or more 
E)  variable sets of chromosomes 
A)  ½ 
B)  1 
C)  2 
D)  3 or more 
E)  variable sets of chromosomes

Question 5

The haploid number of chromosomes of a plant is 20.The number of chromosomes in root, stem, and leaf cells would be

Accepted Answer

A)  10. 
B)  20. 
C)  30. 
D)  40. 
E)  60. 
A)  10. 
B)  20. 
C)  30. 
D)  40. 
E)  60.

Question 6

In meiosis

Accepted Answer

A)  spindles are formed during the second division of the process only. 
B)  an interphase cell with 8 chromosomes ends up as 4 cells, each with 8 chromosomes. 
C)  a whole chromosome from each pair migrates toward a pole in metaphase II. 
D)  the chromosomes become shorter and thicker in prophase I. 
E)  the chromosome number remains the same. 
A)  spindles are formed during the second division of the process only. 
B)  an interphase cell with 8 chromosomes ends up as 4 cells, each with 8 chromosomes. 
C)  a whole chromosome from each pair migrates toward a pole in metaphase II. 
D)  the chromosomes become shorter and thicker in prophase I. 
E)  the chromosome number remains the same.

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

Diploid organisms have how many sets of chromosomes?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 11

New cell walls are formed between the four groups of chromosomes during anaphase I.

Accepted Answer

A) True 
 B)False

Question 12

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 13

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.

Question 14

Chiasmata occur during anaphase I.

Accepted Answer

A) True 
 B)False

Question 15

Both meiosis and fertilization contribute to the genetic variability of the offspring.

Accepted Answer

A) True 
 B)False

Question 16

Spore mother cells give rise to gametes through meiosis.

Accepted Answer

A) True 
 B)False

Question 17

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 18

Syngamy and fertilization are alternate terms for the same thing.

Accepted Answer

A) True 
 B)False

Question 19

Chiasmata appear in

Accepted Answer

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

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 12: Meiosis and Alternation of Generation

______________ is common to all organisms that reproduce sexually.

At the end of Meiosis I, the total number of chromosomes in each daughter cell is ___________.

In meiosis, centromeres divide separating chromatids at the beginning of

Polyploid plants have __________ sets of chromosomes.

The haploid number of chromosomes of a plant is 20.The number of chromosomes in root, stem, and leaf cells would be

In meiosis

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

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

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

Diploid organisms have how many sets of chromosomes?

New cell walls are formed between the four groups of chromosomes during anaphase I.

One difference between meiosis and mitosis is that in meiosis

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

Chiasmata occur during anaphase I.

Both meiosis and fertilization contribute to the genetic variability of the offspring.

Spore mother cells give rise to gametes through meiosis.

Which of the following statements about mitosis is NOT true?

Syngamy and fertilization are alternate terms for the same thing.

Chiasmata appear in

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

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 Kingdombacteria, Domain King-Domarchaea, 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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