An mRNA coding region contains nucleotides, including the start codon but excluding the stop codon. How many amino acids are in the polypeptide?
Answer and explanation
Correct answer: A.
- Step 1: Each amino acid is coded by a triplet codon of nucleotides.
- Step 2: amino acids.
Answer
.
Why not the others: : counts each nucleotide as an amino acid. : multiplies by instead of dividing. : divides by instead of .
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