The processes that pass genetic information from generation to generation are
A) mitosis and fertilization.
B) mitosis and meiosis.
C) meiosis and fertilization.
D) interactions of DNA and the environment.
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Question 2) The structure of a testis is composed of
A) semen in various stages of development held in seminiferous tubules.
B) a single very long seminiferous tubule that winds through the structure.
C) 1 to 4 lobules, each of which contains about 250 seminiferous tubules.
D) about 250 lobules, each of which contains 1 to 4 seminiferous tubules.
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Question 3) The hormones that maintain the uterine wall during the last 5 to 6 months of pregnancy
are
A) placental lactogen and relaxin.
B) FSH and LH.
C) human chorionic gonadotropin and synthetic estrogen.
D) placental estrogen and progesterone.
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Question 4) Marvin goes on vacation to Maine and for a week eats nothing but seafood. The next
week, he experiences intense pain in his big toe. He probably has
A) diuresis. B) gout.
C) Balkan endemic nephropathy. D) edema.
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Question 5) The origin of the 46 chromosomes in a human zygote is
A) all from the egg.
B) all from the sperm cell.
C) half from DNA and half from RNA.
D) half from the sperm and half from the egg.
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Question 6) Exposure to secondhand smoke increases risk of
A) abnormal blood clotting.
B) all of the above.
C) platelet activation
D) damage to the smooth endothelial lining of blood vessels.
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Question 7) The last fluid expelled from the urethra during ejaculation comes from the
A) prostate gland. B) bulbourethral gland.
C) testes. D) seminal vesicles.
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Question 8) The fetus is protected from certain infections, to which the mother is immune, by
A) antibodies from its own immune system.
B) the extraembryonic membranes.
C) antibodies from the mother's immune system.
D) its own innate defenses.
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Question 9) Acid-base buffers are the first line of defense against shifts in pH because
A) they are fast. B) they occur in everyone.
C) they occur closest to the skin. D) they are slow and prolonged.
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Question 10) Complete proteins can promote normal growth, whereas incomplete proteins cannot
promote normal growth.
Indicate whether the statement is true or false
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