Development And Inheritance

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Question 1
Free
Multiple Choice

The gradual modification of anatomical structures and physiologic characteristics from fertilization to maturity is termed

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A

gametogenesis.

B

ontogeny.

C

development.

D

transformation.

E

disablement.

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Question 2
Free
Multiple Choice

The formation of different types of cells required in development, or ________ , occurs through selectivechanges in genetic activity.

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A

differentiation

B

cupellation

C

deployment

D

gametogenesis

E

phylogeny

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Question 3
Free
Multiple Choice

The transfer of genetically determined characteristics from generation to generation is termed

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A

development.

B

differentiation.

C

inheritance.

D

phylogeny.

E

maturity.

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Question 4
Free
Multiple Choice

Sperm cannot fertilize an oocyte until they

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A

undergo capacitation.

B

undergo meiosis.

C

lose their flagellum.

D

are in the vagina for 3 days.

E

are activated by sustentacular cells of the vagina.

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Question 5
Free
Multiple Choice

Which of the following is not part of oocyte activation?

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A

softening of the zona pellucida

B

influx of sodium ion

C

membrane depolarization

D

release of calcium ion from smooth ER

E

discharge of exocytotic vesicles adjacent to the oocyte membrane

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Question 6
Multiple Choice

Polyspermy results in

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A
twins.
B
fetuses with different fathers.
C
haploid individuals.
D
chimeric adults.
E
a nonfunctional zygote.
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Question 7
Multiple Choice

During amphimixis,

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A
sperm become haploid.
B
the ovum finishes meiosis II.
C
the male and female pronuclei fuse.
D
meiosis occurs.
E
gametes are formed.
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Question 8
Multiple Choice

The site where fertilization normally occurs is in the

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A
cervix.
B
fimbrae.
C
uterine wall near the fundus.
D
outer one-third of the uterine tube.
E
union of the vagina and uterus.
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Question 9
Multiple Choice

The layer of follicle cells that surround the unfertilized egg is called the

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A
zona pellucida.
B
corona radiata.
C
Graafian follicle.
D
functional zone.
E
tunica follicularis.
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Question 10
Multiple Choice

Block to polyspermy is prevented by the ________ reaction.

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A
metabolic
B
gamete
C
gollumina
D
cortical
E
polarity
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Question 11
Multiple Choice

The cell that directly results from the fusion of a secondary oocyte and a single sperm is called a(n)

Choose correct answer/s
A
ootid.
B
gastrula.
C
blastula.
D
morula.
E
zygote.
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Question 12
Multiple Choice

Sperm release ________ to break down the bonds between adjacent follicle cells surrounding the oocyte.

Choose correct answer/s
A
relaxin
B
hyaluronidase
C
calcium
D
zonal inhibiting proteins
E
glucose
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Question 13
Multiple Choice

Fertilization stimulates the oocyte to enter meiosis II and the fertilized oocyte is called a(n)

Choose correct answer/s
A
oogonium.
B
primary oocyte.
C
secondary oocyte.
D
ovum.
E
polar body.
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Question 14
Multiple Choice

The developmental period that is the period of all embryological and early fetal development is

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A
the first trimester.
B
the second trimester.
C
the third trimester.
D
infancy.
E
adolescence.
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Question 15
Multiple Choice

The period of gestation that is characterized by rapid fetal growth and fat deposition is the ________ trimester.

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A
first
B
second
C
third
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Question 16
Multiple Choice

The period of gestation when organs and organ systems complete most of their development and the fetus looks distinctly human is the ________ trimester.

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A
first
B
second
C
third
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Question 17
Multiple Choice

The term ________ refers to the time spent in prenatal development.

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A
transformation
B
micturition
C
parturition
D
gestation
E
cleavage
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Question 18
Multiple Choice

The human gestation period consists of

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A
fertilization and one trimester.
B
two trimesters of 1 month each.
C
three trimesters of 1 month each.
D
two trimesters of 2 months each.
E
three trimesters of 3 months each.
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Question 19
Multiple Choice

Which of the following statements concerning development is false?

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A
The term induction refers to the chemical interplay between developing cells.
B
The developing oocyte receives molecules that affect development from the surrounding granulosa cells.
C
Each blastomere in the blastocyst receives exactly the same cytoplasmic composition.
D
Differences in a cell's cytoplasmic makeup affect the cell's genetic activity.
E
Cells release molecules that affect the developmental process of neighboring cells.
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Question 20
Multiple Choice

After fertilization, the first cell division is completed

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A
within a few seconds.
B
within the hour.
C
about 6 hours later.
D
in 12 hours.
E
about 30 hours later.
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