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Biology, 6/e
Author Dr. George B. Johnson, Washington University
Author Dr. Peter H. Raven, Missouri Botanical Gardens & Washington University
Contributor Dr. Susan Singer, Carleton College
Contributor Dr. Jonathan Losos, Washington University
Sex and Reproduction

Multiple Choice Quiz

Please answer all questions



1

If the queen bee lays eggs that are not fertilized, they will develop into
A)queens
B)female workers
C)drones
D)male workers
2

In sequential hermaphroditism, the same animal may be first female and later become male. The process as described is
A)protogyny
B)polygyny
C)polyandry
D)protandry
3

In mammals that are seasonal breeders, females are receptive only once a year. This is called
A)a follicular cycle
B)an estrous cycle
C)a menstrual cycle
D)a luteal cycle
4

After sperm are produced, they are delivered first to the
A)vas deferens
B)urethra
C)epididymis
D)seminal vesicle
5

A human male is generally considered sterile if his ejaculation contains less than
A)100,000,000 sperm
B)20,000,000 sperm
C)100,000 sperm
D)1,000 sperm
6

The first vertebrates to engage in sexual reproduction were
A)primitive terrestrial vertebrates
B)advanced terrestrial vertebrates
C)advanced marine vertebrates
D)primitive marine vertebrates
7

Which of the following animals has an amniotic egg?
A)a frog
B)a sea turtle
C)a fish
D)all of the above
E)none of the above
8

Which mammals are oviparous?
A)marsupials
B)placental mammals
C)monotremes
D)no mammals are oviparous
E)all mammals are oviparous
9

Some fish are
A)viviparous
B)ovoviviparous
C)oviparous
D)all of the above
E)none of the above
10

Compared with fish, most amphibians have
A)internal fertilization rather than external
B)a much longer development time
C)very few numbers of eggs produced during each reproductive cycle
D)all of the above
E)none of the above
11

Progesterone is produced by the
A)corpus luteum
B)hypothalamus
C)seminiferous tubules
D)pituitary gland
E)oviduct
12

Ovulation is caused by the hormone
A)FSH
B)progesterone
C)oxytocin
D)estrogen
E)LH
13

How many chromosomes does a normal, mature, human sperm cell contain?
A)1
B)2
C)23
D)46
14

Mature sperm cells are called
A)spermatogenesis
B)spermatids
C)secondary spermatocytes
D)primary spermatocytes
E)spermatozoa
15

What is the name of the vesicle at the tip of a sperm cell that contains enzymes that will help the sperm cell penetrate an egg cell it encounters?
A)scrotum
B)amnion
C)chorion
D)Sertoli cell
E)acrosome
16

During the excitement phase of intercourse, what makes the human penis enlarge and become rigid?
A)blood
B)semen
C)bone
D)contracted muscles
17

Which of the following is the largest in size?
A)mature sperm cell
B)mature egg cell
C)polar body
D)they are all approximately the same size
18

The lining or inner layer of the uterus is called the
A)cervix
B)vagina
C)labia
D)endometrium
E)epididymis
19

How long is the refractory period for men on average after intercourse?
A)men don't have a refractory period
B)about 20 seconds
C)about 2 minutes
D)about 20 minutes
E)about 2 hours
20

Which of the following forms of birth control does not prevent conception (fertilization)?
A)an IUD
B)a condom
C)a diaphragm
D)a vasectomy
E)all of the above do prevent conception
21

Which of the following is the most reliable form of birth control?
A)the rhythm method
B)a douche
C)birth control pills
D)coitus interruptus
E)they are all equally reliable
22

What structure is cut and tied off in a vasectomy?
A)the penis
B)the epididymis
C)the urethra
D)the seminiferous tubules
E)the vas deferens
23

Vasectomies and tubal ligations make the person
A)sterile
B)unable to produce sex hormones
C)lose their sex drive
D)all of the above
E)none of the above
24

Testosterone is produced by the
A)seminiferous tubules
B)germinal epithelium
C)SRY cells
D)Leydig cells
E)Sertoli cells
25

The majority of the semen is produced by the
A)seminal vesicles
B)prostate gland
C)bulbourethral gland
D)seminiferous tubules
E)they all contribute equally
26

The follicular phase of the menstral cycle is also known as the _______________ phase of the endometrium.
A)proliferative
B)luteal
C)secretory
D)menstruation
E)menarche
27

Reproduction in birds compares to reproduction in reptiles in that
A)both newly hatched birds and reptiles require parental care
B)they are both ovoviviparous
C)both exhibit external fertilization
D)male or female reptiles can reproduce asexually; birds do not
E)the eggs of both birds and reptiles have protective shells
28

In humans, fertilization of an egg normally takes place when the sperm and egg unite in the:
A)vagina
B)uterus
C)fallopian tube
D)ovary
E)All of the above are possible locations for fertilization.
29

The corpus luteum produces _______________, which inhibits ovulation.
A)LH
B)FSH
C)estrogen
D)progesterone
E)prolactin
30

Approximately two-thirds of the male ejaculate is produced and secreted by the:
A)prostate gland.
B)bulbourethral gland.
C)testes and epididymis.
D)Cowper's gland.
E)seminal vesicles.
31

Shortly before menstruation:
A)blood levels of estrogen and progesterone decrease.
B)blood levels of estrogen and progesterone increase.
C)blood levels of FSH stabilize.
D)the corpus luteum secretes progesterone.
E)none of the above occur.
32

With reference to the ovary, the postmenstrual phase of the menstrual cycle is also called the:
A)proliferative phase.
B)ovulatory phase.
C)luteal phase.
D)follicular phase.
E)estrogen phase.
33

The expulsion of seminal fluid from the male urethra into the female vagina is called fertilization.
A)True
B)False
34

In addition to producing the egg, the ovaries are also endocrine organs.
A)True
B)False
35

In mammalian males, the reproductive and excretory systems share the same urethra.
A)True
B)False
36

The adaptation of the amniotic egg by reptiles and birds had little impact on their ability to survive a terrestrial environment.
A)True
B)False








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