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AP Biology/Unit 6: Gene Expression and Regulation
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mRNA Translation and Polypeptide Length
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A mature mRNA transcript is 900 nucleotides long. If this transcript is translated and the final codon is a stop codon, which does not code for an amino acid, how many amino acids will the resulting polypeptide contain?

A

$$299$$

B

$$297$$

C

$$300$$

D

$$298$$

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