Which of the following genera produce numerous useful antibiotics?
A. Clostridium
B. Leuconostoc
C. Helicobacterium
D. Bacillus
Answer: D
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The sirtuin, resveratrol, is a natural component of
A) turtle soup. B) owl meat. C) cigarette smoke. D) red wine.
Class I MHC genes code for
A. certain secreted complement components. B. receptors located primarily on macrophages and B cells. C. self receptors recognized by T lymphocytes. D. all HLA antigens.
Prolactin
a. stimulates the mammary glands to produce milk. b. causes the development of breasts and other secondary sexual characteristics in the male. c. acts in concert with FSH to produce milk. d. has secondary effects on reducing the size of the uterus after birth. e. is secreted only after the flow of milk has begun after delivery of the child.
Which of the following might cause metabolic acidosis?
a. vomiting b. overuse of antacids c. hormonal disorders d. increased carbon dioxide excretion e. kidney failure causing decreased H+ excretion