Biology (Mader), 10th Edition

Chapter 10: Meiosis and Sexual Reproduction

Post-Test

1
Sexual reproduction _____.
A)requires haploid gametes
B)results in a diploid zygote
C)creates offspring that are genetically different from the parents
D)All of these
2
Once duplicated, a chromosome is composed of two identical parts called _____.
A)sister chromatids
B)centromeres
C)homologous chromosomes
D)chiasmata
3
Sexual reproduction contributes greatly to the process of _____.
A)evolution
B)metabolism
C)organization
D)growth and repair
4
The combining of chromosomes from genetically different gametes occurs during _____.
A)crossing over
B)synapsis
C)meiosis II
D)fertilization
5
In animals the haploid cells produced by meiosis mature and become _____.
A)spores
B)zygotes
C)gametes
D)diploid
6
A primary spermatocyte with 46 chromosomes will undergo meiosis and yield _____.
A)four spermatids with 46 chromosomes
B)four spermatids with 23 chromosomes
C)two spermatids with 46 chromosomes
D)two spermatids with 23 chromosomes
7
In females, meiosis is a part of _____, which occurs in the ovaries and produces eggs.
A)fertilization
B)oogenesis
C)the alternation of generations
D)spermatogenesis
8
When a primary spermatocyte undergoes meiosis I, two _____ secondary spermatocytes are produced.
A)diploid
B)haploid
C)triploidy
9
Mitosis occurs in humans during _____.
A)development of the zygote
B)growth of a child
C)repair of tissue at any time
D)All of these
10
Which phase is characterized by the haploid number of duplicated chromosomes at the metaphase plate?
A)meiosis II metaphase II
B)mitosis prophase
C)meiosis II telophase II
D)meiosis I metaphase I
11
Which of the following results in diploid daughter cells?
A)meiosis I
B)meiosis II
C)mitosis
12
Which is true of both meiosis II and mitosis?
A)Pairing of chromosomes
B)Diploid number of chromosomes at the metaphase plate
C)Separation of sister chromatids
D)Four daughter cells
13
Which is characteristic of meiosis I?
A)Pairing of chromosomes
B)Separation of sister chromatids
C)Diploid daughter cells
D)All of these
14
At the end of telophase II and cytokinesis there are __________ haploid cells.
A)two
B)four
C)six
15
The homologues of each bivalent separate and move to opposite poles during _____.
A)prophase I
B)metaphase II
C)anaphase I
D)anaphase II
16
Crossing over between nonsister chromatids occurs during _____.
A)interkinesis
B)prophase I
C)telophase I
D)anaphase II
17
Turner's syndrome is _______.
A)produced by mutation
B)produced by nondisjunction of an autosome
C)produced by nondisjunction of an X chromosome
D)trisomy X
18
Down Syndrome is an example of _______.
A)polyploidism
B)trisomy
C)monosomy
D)abnormality in embryonic development
19
At the completion of meiosis II, there are _____ daughter cells.
A)two haploid
B)two diploid
C)four haploid
D)four diploid
20
The diploid number of chromosomes is restored after _____ so that an animal's body cells contain the diploid number of chromosomes.
A)meiosis I
B)meiosis II
C)fertilization
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