The enzyme ________ allows HIV to make a DNA copy of its RNA genome.

A) reverse transcriptase

B) DNA polymerase

C) RNA polymerase

D) DNA transcriptase


A) reverse transcriptase

Biology & Microbiology

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Consider the cladogram shown. Which pair of species shares the greatest number of derived characters (synapomorphies)?  



A.  4 and 2
B.  5 and 4
C.  6 and 1
D.  6 and 2
E.  5 and 2

Biology & Microbiology

In which trophic level is biological magnification most likely to have a deleterious impact?

1.primary producer 2.primary consumer 3.secondary consumer 4.tertiary consumer

Biology & Microbiology

Fertilization of an egg without activation is most like _____

A) placing the key in the ignition of a car but not starting the engine B) resting during halftime of a basketball game C) preparing a pie from scratch and baking it in the oven D) walking to the cafeteria and eating lunch

Biology & Microbiology

Which of the following would be the first step in biosynthesis of a virus with a - (minus) strand of RNA?

A) synthesis of DNA from an RNA template B) synthesis of double-stranded RNA from an RNA template C) synthesis of double-stranded RNA from a DNA template D) transcription of mRNA from DNA E) synthesis of DNA from a DNA template

Biology & Microbiology