Which of the following enzymes does HIV use to synthesize DNA on an RNA template?
A) DNA ligase
B) RNA polymerase
C) reverse transcriptase
D) DNA polymerase
Answer: C
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Which of these is NOT a lipid?
A. phospholipid B. cholesterol C. steroids D. glycogen E. wax and oils
Bees learn the direction to a distant source of food by
a. following the foraging scout. b. following a trail pheromone. c. noting the scout’s waggle dance. d. noting the scout’s round dance. e. noting the scout’s waggle dance and its round dance.
A(n) ________ group is treated like an experimental group, except for the one variable being tested
Fill in the blank(s) with correct word
A pregnant mouse is exposed to high levels of a chemical. Many of the mice in her litter are deformed, but when they are interbred with each other, all their offspring are normal. Which two of the following statements could explain these results?
(a) In the deformed mice, somatic cells but not germ cells were mutated. (b) The original mouse's germ cells were mutated. (c) In the deformed mice, germ cells but not somatic cells were mutated. (d) The toxic chemical affects development but is not mutagenic.