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Which of the following is the start codon in protein translation?

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Which of the following is the start codon in protein translation?

(a) AUG

(b) UAA

(c) UAG

(d) UGA

This question was addressed to me in an online interview.

This interesting question is from Genes, Chromosomes and Genomes in division Bioenergetics, Enzymes, Metabolism, Genes, Chromosomes and Genomes of Cell Biology

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The correct answer is (a) AUG

The best I can explain: The start codon indicates the start of protein translation after the 5’-untranslated region (UTR) and the ribosome binds to the start codon in the mRNA. AUG is the sole start codon and codes for the amino acid Methionine. UAA, UAG and UGA are the three stop codons that indicate the termination of protein translation.

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