Nucleoli contain chromosomal regions that specialize in making:a

proteins.
b. RNA.
c. ribosomes.
d. lipids.
e. hormones.


B

Biology & Microbiology

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Most mobile DNA consists of

A) transposable elements. B) introns. C) linear chromosomes. D) plasmids.

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What powers the ATP synthase enzyme in the light-dependent reactions of photosynthesis?

a. energy from ATP b. energy from NADPH c. energy from the splitting of water d. energy from electron transfer chains e. energy from the flow of hydrogen ions

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Which blood vessels offer the most resistance to flow?

a. venules b. arterioles c. veins d. arteries e. capillaries

Biology & Microbiology

Which of the following is a reduction reaction?

Biology & Microbiology