A DNA strand has 12 bases. How many amino acids can it code for if each amino acid needs three bases?
Answer and explanation
Correct answer: D. 4
- Step 1: Every amino acid is coded for by a triplet.
- Step 2: 12 ÷ 3 = 4 amino acids.
Answer
4.
Why not the others: 12: each amino acid needs three bases. 36: this multiplies instead of divides. 3: this is the base triplet size.
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