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Human Biology, 7/e
Dr. Sylvia S. Mader
Chromosomal Inheritance
Multiple Choice
Please answer all questions
1
A ________ is a group of medical characteristics that are inherited together. (p. 386)
A)
chromosomal abnormality
B)
gene
C)
syndrome
D)
mutation
2
The type of cell division that results in the formation of gametes is __________. (p. 386)
A)
mitosis
B)
meiosis
C)
nondisjunction
D)
somatic division
3
Humans inherit _______ pairs of chromosomes. (p. 386)
A)
10
B)
12
C)
23
D)
46
4
Most tissues contain _________ which continually divide. (p. 387)
A)
somatic cells
B)
sex cells
C)
stem cells
D)
haploid cells
5
Mitosis is involved in _______. (p. 387)
A)
growth and repair
B)
oogenesis
C)
spermatogenesis
D)
both B and C
6
Each duplicated chromosome is composed of two identical parts called _______. (p. 387)
A)
sister chromatids
B)
centromeres
C)
spindles
D)
nuceli
7
The chromatids are held together in a region called the ______. (p. 387)
A)
microtubule
B)
centromere
C)
spindle
D)
aster
8
During what stage of mitosis do the chromosomes condense and become visible? (p. 388)
A)
prophase
B)
metaphase
C)
anaphase
D)
telophase
9
What portion of the spindle is made up of short microtubules that radiate from the poles? (p. 388)
A)
fibers
B)
asters
C)
poles
D)
centrioles
10
What stage of mitosis is characterized by a fully formed spindle and the alignment of chromosomes at the equator of the cell? (p. 389)
A)
prophase
B)
metaphase
C)
anaphase
D)
telophase
11
During meiosis I the __________ pair up in synapsis. (p. 390)
A)
chromatids
B)
centromeres
C)
haploid chromosomes
D)
homologous chromosomes
12
In what way(s) can meiosis assure new genetic combinations occur in the offspring? (p. 391)
A)
crossing-over
B)
gametes have different combinations of chromosomes than parent cells
C)
recombination of chromosomes occurs during fertilization
D)
All of these are correct.
13
In what phase of meiosis are the dyads lined up at the equator of the cell? (p. 392)
A)
anaphase I
B)
prophase II
C)
metaphase II
D)
telophase I
14
What is the nature of the daughter cells following meiosis? (p. 392)
A)
two haploid cells
B)
two diploid cells
C)
four haploid cells
D)
four diploid cells
15
Oogenesis differs from spermatogenesis in the oogenesis results in ______. (p. 394)
A)
four diploid cells
B)
four haploid eggs cells
C)
two diploid cells, two haploid cells
D)
one haploid egg cell, three polar bodies
16
A display of pairs of chromosomes is called a _______. (p. 395)
A)
genotype
B)
caricature
C)
phenotype
D)
karyotype
17
_______ are all the pairs of chromosomes except the X and Y chromosomes. (p. 395)
A)
Autosomes
B)
Sex chromosomes
C)
Gametes
D)
Homologous chromosomes
18
Down syndrome, Klinefelter syndrome, and Turner syndrome all result from _________ during meiosis. (p. 395, 396)
A)
crossing-over
B)
independent assortment
C)
nondisjunction
D)
recombination
19
Characteristics of Down syndrome include _______. (p. 396)
A)
short stature
B)
three copies of chromosome 21
C)
mental retardation
D)
All of these are correct.
20
A chromosomal ______ is responsible for cri du chat syndrome. (p. 397)
A)
addition
B)
transposition
C)
deletion
D)
inversion
21
A person with Turner syndrome has _______ chromosome(s). (p. 398)
A)
one X
B)
two X
C)
one Y two X
D)
two Y
2002 McGraw-Hill Higher Education
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