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Genetic code MCQ - Practice Questions with Answers

Solve 1 Genetic code questions for RAS/RPSC preparation.

Practice questions

Q1Select the incorrect statement about the genetic code.

A The codon is triplet.
B 61 codons code for amino acids.
C UUU codes for phenylalanine.
D AUG only acts as an initiator codon and has no other function.
Explanation

The genetic code is read in triplets, so the statement that a codon is triplet is correct. Out of 64 codons, 61 specify amino acids and 3 act as stop codons, so that statement is also correct. UUU codes for phenylalanine, making that statement correct as well. AUG is the initiator codon, but it also codes for methionine. Therefore, saying that AUG has no other function is incorrect, which is why that statement is the required answer.

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