Name: 
 

Ch. 43-44 Review



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

1. 

Which of the following statements is NOT true of the human female?
a.
She produces all the eggs that she ever will before she is born.
b.
The process of meiosis may take 30 to 50 years to complete.
c.
The primary oocytes lay dormant until puberty.
d.
She will normally produce more gametes than her male counterpart.
e.
It is possible that more than one egg will be released at ovulation.
 

2. 

Which of the following affects the developmental pathways that different embryonic cells eventually will follow?
a.
sperm nucleus
b.
egg nucleus
c.
sperm cytoplasm
d.
egg cytoplasm
 

3. 

Which of the following is part of the urinary system, not the reproductive system?
a.
ureter
b.
urethra
c.
vas deferens
d.
vas efferens
e.
epididymis
 

4. 

Although the genetic contributions of egg and sperm nuclei are equal, the egg contributes more than the sperm to cell differentiation because of its
a.
larger size.
b.
cytoplasmic determinants.
c.
proteins.
d.
cytoplasmic determinants and proteins, only.
e.
cytoplasmic determinants, proteins, and larger size.
 

5. 

Which of the following serves to end the menstrual cycle?
a.
a surge in luteinizing hormone
b.
the secretion of human chorionic gonadotropin
c.
the secretion of prostaglandins by the corpus luteum that lead to its self-destruction
d.
a rise in the level of progesterone
e.
a drop in the level of gonadotropic hormones in the blood
 

6. 

Which of the following statements is false?
a.
A female has more oocytes before she is born than at any time during her life.
b.
Meiosis II will not occur in an oocyte unless it is fertilized.
c.
Fertilization occurs in the vagina.
d.
Implantation occurs in the uterus.
e.
The vagina serves as the birth canal.
 

7. 

Which of the following events is NOT included in what embryologists refer to as gastrulation?
a.
cell rearrangements
b.
formation of the archenteron
c.
organ formation
d.
formation of germ layers
e.
establishment of the body axis
 

8. 

The germ layers are formed in which of the following stages?
a.
cleavage
b.
morula
c.
gastrula
d.
zygote
e.
blastula
 

9. 

All but which of the following are the products of meiosis?
a.
male gametes
b.
spermatids
c.
sperm
d.
secondary spermatocytes
e.
spermatogonia
 

10. 

Which of the following is the site where sperm are stored?
a.
ureter
b.
urethra
c.
vas deferens
d.
vas efferens
e.
epididymis
 

11. 

Based on their response to a particular hormone from the anterior pituitary, Sertoli cells of the male are most like __________ of the female.
a.
uterine cells
b.
oviducts
c.
ovarian follicles
d.
cervix cells
e.
corpus luteum
 

12. 

The primary reproductive organ in the human female is the
a.
uterus.
b.
ovary.
c.
vagina.
d.
clitoris.
e.
vulva.
 

13. 

Testosterone
a.
stimulates spermatogenesis.
b.
promotes the normal development and maintenance of sexual behavior.
c.
is responsible for secondary sexual characteristics.
d.
is responsible for the development of the male genitalia.
e.
all of these
 

14. 

Which of the following statements is false?
a.
A copperhead snake bears her young alive.
b.
Some fishes, lizards, snakes, and mammals are ovoviviparous.
c.
Birds and monotremes are oviparous.
d.
Marsupials and placental mammals are viviparous.
e.
Oviparous forms hatch outside their mother's body.
 

15. 

The heart, muscles, bones, and blood develop primarily from
a.
ectoderm.
b.
mesoderm.
c.
endoderm.
d.
the placenta.
e.
the gray crescent.
 

16. 

Which of the following is NOT true of asexual reproduction?
a.
It is more suitable for reproduction in animals in stable environments.
b.
It results in offspring that are identical to each other.
c.
It promotes genetic variation in each successive generation.
d.
Budding is one type of asexual reproduction.
e.
The offspring are genetically identical to the parents.
 

17. 

Meiosis I results directly in the production of
a.
spermatids.
b.
spermatogonial cells.
c.
primary spermatocytes.
d.
secondary spermatocytes.
e.
sperm.
 

18. 

Muscles differentiate from which tissue?
a.
ectoderm
b.
endoderm
c.
mesoderm
d.
all of these
 

19. 

Which of the following is false?
a.
All mammals have either an estrous or a menstrual cycle.
b.
All primates have a menstrual cycle.
c.
All female primates can be physically and behaviorally receptive to sexual activity at any time.
d.
Eggs released by older women have a greater chance of producing a Down syndrome child.
e.
All menstrual cycles last from 26 to 30 days.
 

20. 

The membrane that forms the majority of the placenta is the
a.
amnion.
b.
allantois.
c.
chorion.
d.
yolk sac.
e.
umbilical cord.
 

21. 

Ovulation involves the
a.
production of the first polar body.
b.
release of a secondary oocyte.
c.
beginning of the follicular phase of the menstrual cycle.
d.
suspension of the meiotic process.
e.
deterioration of the corpus luteum.
 

22. 

In frogs,
a.
reproduction is internal and occurs in a process called copulation.
b.
fertilization occurs within the body of the female.
c.
eggs and sperm are released simultaneously during a process called amplexus.
d.
males leave sperm in a nest and females lay eggs in the same nest.
e.
females lay eggs in a nest site and males release sperm in the same general area.
 

23. 

The average number of sperm that enter the vagina during an ejaculation is between
a.
150,000 and 350,000.
b.
1.5 and 3.5 million.
c.
15 and 35 million.
d.
150 and 350 million.
e.
1.5 and 3.5 billion.
 

24. 

The presence of which hormone in a mother's urine indicates that she is pregnant?
a.
luteinizing hormone
b.
follicle-stimulating hormone
c.
chorionic gonadotropin
d.
progesterone
e.
estrogen
 

25. 

Ovulation is triggered by
a.
high levels of LH.
b.
low levels of LH.
c.
high levels of chorionic gonadotropin.
d.
high levels of estrogen.
e.
high levels of progesterone.
 

26. 

Sperm are produced in the
a.
testes.
b.
vas deferens.
c.
epididymis.
d.
prostate gland.
e.
penis.
 

27. 

The process of cleavage most commonly produces a
a.
zygote.
b.
blastula.
c.
gastrula.
d.
puff.
e.
third germ layer.
 

28. 

In most mammals, a predictably recurring time when the female becomes sexually receptive to the male is called
a.
estrus.
b.
endometrium.
c.
menstruation.
d.
coitus.
e.
parturition.
 

29. 

The major difference between the male and female reproductive systems is the
a.
provision of a site for fertilization and development in the female.
b.
production of haploid gametes by the male only.
c.
diploid polar bodies of the female.
d.
generation of millions of eggs but only thousands of sperm each month.
 

30. 

Which of the following animals would fit this description: "Eggs fertilized outside the body, minimum of yolk, rapid development?"
a.
bird
b.
sea urchin
c.
bony fish
d.
reptile
e.
human
 



 
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