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Biochemistry · Nucleic acids
Sample itemWhat is the role of messenger RNA?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Carry coding information from DNA to ribosomes
Messenger RNA carries a transcribed genetic sequence from DNA to ribosomes, where it serves as the template for protein synthesis.
Option by option
A. Carry coding information from DNA to ribosomes (correct)
Correct: mRNA provides the translation template.
B. Transport amino acids directly to mitochondria
Transfer RNA carries amino acids to ribosomes.
C. Digest proteins in lysosomes
Lysosomes digest material but do not use mRNA for digestion.
D. Store lipids in the cell membrane
Membranes store lipids, not coding RNA.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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