Multiple
Choice
Identify the letter of the choice that best completes the statement or answers the
question.
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1.
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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. | | |
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2.
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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 | | |
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3.
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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 | | |
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4.
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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. | | |
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5.
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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 | | |
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6.
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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. | | |
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7.
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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 | | |
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8.
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The germ layers are formed in
which of the following stages? a. | cleavage | b. | morula | c. | gastrula | d. | zygote | e. | blastula | | |
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9.
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All but which of the following
are the products of meiosis? a. | male gametes | b. | spermatids | c. | sperm | d. | secondary spermatocytes | e. | spermatogonia | | |
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10.
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Which of the following is the
site where sperm are stored? a. | ureter | b. | urethra | c. | vas deferens | d. | vas efferens | e. | epididymis | | |
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11.
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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 | | |
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12.
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The primary reproductive organ
in the human female is the a. | uterus. | b. | ovary. | c. | vagina. | d. | clitoris. | e. | vulva. | | |
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13.
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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 | | |
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14.
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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. | | |
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15.
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The heart, muscles, bones, and
blood develop primarily from a. | ectoderm. | b. | mesoderm. | c. | endoderm. | d. | the placenta. | e. | the gray
crescent. | | |
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16.
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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. | | |
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17.
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Meiosis I results directly in
the production of a. | spermatids. | b. | spermatogonial
cells. | c. | primary spermatocytes. | d. | secondary spermatocytes. | e. | sperm. | | |
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18.
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Muscles differentiate from
which tissue? a. | ectoderm | b. | endoderm | c. | mesoderm | d. | all of these | | |
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19.
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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. | | |
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20.
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The membrane that forms the
majority of the placenta is the a. | amnion. | b. | allantois. | c. | chorion. | d. | yolk sac. | e. | umbilical cord. | | |
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21.
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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. | | |
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22.
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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. | | |
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23.
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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. | | |
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24.
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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 | | |
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25.
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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. | | |
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26.
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Sperm are produced in
the a. | testes. | b. | vas deferens. | c. | epididymis. | d. | prostate gland. | e. | penis. | | |
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27.
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The process of cleavage most
commonly produces a a. | zygote. | b. | blastula. | c. | gastrula. | d. | puff. | e. | third germ
layer. | | |
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28.
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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. | | |
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29.
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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. | | |
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30.
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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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