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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DNA
is made up of a phosphate group, a sugar, and_____________. a. | a
fat. | c. | a nitrogen
base. | b. | a molecule of ATP. | d. | a protein. | | | | |
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2.
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The
direct result of transcription is_______________. a. | tRNA | c. | rRNA | b. | mRNA | d. | a duplicate DNA molecule. | | | | |
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3.
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The
direct result of translation is_____________. a. | tRNA | c. | rRNA | b. | mRNA | d. | a duplicate DNA molecule. | | | | |
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4.
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During translation the tRNA molecule_____________________. a. | sits between the
mRNA molecule and the large subunit of the ribosome. | b. | moves between
the two subunits of the ribosome. | c. | brings amino acids from the cytoplasm to the corresponding
codon in the mRNA. | d. | binds amino acids together in the growing polypeptide
chain. | e. | is not involved. | | |
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5.
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During transcription the mRNA molecule_____________________. a. | sits between the
two strands of DNA molecules. | b. | moves between the two subunits of the
ribosome. | c. | brings amino acids from the cytoplasm to make a complimentary
copy of the DNA. | d. | binds amino acids together in the growing polypeptide
chain. | e. | is not involved. | | |
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6.
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Each
amino acid is specified by_____________________. a. | several genes. | b. | an anti
codon | c. | an operon and a promoter. | d. | a
codon | e. | an operon and a promoter. | | |
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7.
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Fertilization of an egg normally takes place when the sperm and egg unite in
the______________. a. | Vagina | c. | Fallopian tubes | b. | Uterus | d. | Ovary | | | | |
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8.
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The
corpus luteum produces ____, which inhibits FSH, preventing further ovulation a. | Prolactin | b. | Estrogen | c. | LH | d. | Testosterone | e. | Progesterone | | |
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9.
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Shortly after fertilization, successive cell divisions convert the zygote into a
multicellular embryo during a process known as a. | meiosis. | b. | parthenogenesis. | c. | embryonic induction. | d. | cleavage. | e. | invagination. | | |
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10.
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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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11.
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If
the vas deferens tubes are cut and tied (vasectomy), the semen will not contain a. | fructose. | b. | buffers. | c. | mucus. | d. | sperm. | e. | any of the
above | | |
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12.
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The
passageway that channels ova from the ovary into the uterus is known as a. | a
vagina. | b. | a uterus. | c. | an
oviduct. | d. | an endometrium. | e. | all of
these | | |
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13.
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Menstrual flow results in the discharge of a. | the
follicle. | b. | the corpus luteum. | c. | the endometrial
lining. | d. | surface cells from the vagina. | e. | blood from the
blood vessels on the outer surface of the uterus. | | |
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14.
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Menstrual flow begins in response to a. | rising levels of
FSH and LH. | b. | falling levels of estrogen. | c. | falling levels
of progesterone. | d. | falling levels of estrogen and
progesterone. | | |
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15.
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Implantation occurs in the a. | ovary. | b. | uterus. | c. | vagina. | d. | oviduct. | e. | follicle. | | |
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16.
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Of
the following, which is the least successful method of birth control? a. | early
withdrawal | b. | a condom alone | c. | a spermicidal
jelly or foam alone | d. | douching | e. | the
Pill | | |
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Matching
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Matching. Choose the one most appropriate answer for
each.
a. | the production
and secretion of milk | d. | characterized by
involuntary muscle contractions, release of tension, and warmth | b. | sloughing off of
endometrium stops permanently | e. | a 100 percent
effective method of preventing conception | c. | cutting and tying of vas deferens | | | | |
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17.
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abstention
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18.
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lactation
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19.
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menopause
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20.
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orgasm
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21.
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vasectomy
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