Would you expect someone with AIDS to have inflammation and/or a fever in response to an infection?
A) No, because HIV weakens or destroys the specific immune response.
B) Yes, because HIV does not destroy the nonspecific defenses.
C) Yes, because HIV does not affect the specific immune response.
D) No, because HIV weakens or destroys the nonspecific defenses.
B
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What would be the result for a patient if all his spermatogonia went through meiosis and proceeded to develop into spermatids?
A. He would produce twice as many sperm and would be protected against infertility from other causes. B. He would produce twice as many sperm, which would crowd them during later development and lead to morphological defects. C. He would be entirely normal, since this is what usually happens. D. After one round of sperm production he would no longer be able to produce sperm and would be infertile.
Pregnancy begins with
a. implantation. b. blastocyst formation. c. gastrulation. d. conception. e. formation of the amnion.
A constitutive gene is a gene that is occasionally expressed
Indicate whether the statement is true or false
Following S phase, a human cell would have how many pairs of sister chromatids and individual DNA molecules?
A. 23 pairs of sister chromatids and 92 individual DNA molecules B. 46 pairs of sister chromatids and 46 individual DNA molecules C. 46 pairs of sister chromatids and 184 individual DNA molecules D. 46 pairs of sister chromatids and 92 individual DNA molecules E. 23 pairs of sister chromatids and 46 individual DNA molecules