Retroviruses use the enzyme reverse transcriptase to
A) transcribe mRNA from a DNA genome.
B) synthesize a hybrid molecule with one DNA stranded base-paired to the complementary RNA strand.
C) synthesize double-stranded RNA.
D) synthesize sense-stranded mRNA from an antisense RNA genome.
E) direct the production of DNA from a single-stranded RNA genome.
Answer: E
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development, chronic irritability, oxygen deprivation, and long-term emotional problems? a. cocaine or crack b. Retin-A c. thalidomide d. streptomycin e. alcohol
All of the following are true of the relationship between the yucca and the yucca moth EXCEPT
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Fermentation can occur in the absence of living cells
Indicate whether the statement is true or false