AP Biologymediummcq1 pt
If a DNA coding strand reads 5′-ATG-3′, what amino acid does it code for?
A.Methionine
B.Tryptophan
C.Stop
D.Phenylalanine
Explanation
Core Concept
The coding strand matches the mRNA (with T→U), so mRNA is AUG — the start codon for methionine.
Correct Answer
AMethionine
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