Which of the following would be the first step in the biosynthesis of a virus with reverse transcriptase?
a. A complementary strand of RNA must be synthesized.
b. Double-stranded RNA must be synthesized.
c. A complementary strand of DNA must be synthesized from an RNA template.
d. A complementary strand of DNA must be synthesized from a DNA template.
e. none of the above
Answer: c. A complementary strand of DNA must be synthesized from an RNA template.
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At how many degrees north and south of the equator does air rise again as a result of different temperatures in air masses that meet?
a. 10 b. 30 c. 40 d. 60 e. 75
Can you explain any differences in average spot number associated with the different type of predators? a. There should be no difference in selective pressure from killifish versus cichlids. b. Cichlids are apparently more dangerous as predators to guppies, and thus canbe expected to exert a stronger selective pressure affecting spot number
c. Killifish are the more dangerous predator to guppies and thus they would bemore likely to exert the stronger selective pressure.
The only way to meet the resource needs of
future generations is through
a. sustainable resource use. b. biological magnification. c. creating conservation hotspots. d. clear cutting and mining. e. increasing use of nonrenewable resources
Which of the following best describes the condition in which the terminal bud of many plants produces hormones that inhibit growth of axillary buds?
A) biennial B) secondary growth C) apical dominance D) germination