A gene has 600 nucleotides in its coding region, including the stop codon, and no introns. How many amino acids are in the polypeptide?
Answer and explanation
Correct answer: C. 199 amino acids
- Step 1: 600 / 3 = 200 codons. Step 2. One codon is the stop codon, so 199 amino acids. Answer: 199. Why not the others: these ignore the triplet code or the stop codon.
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