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Question

Sometimes the starting codon is GUG in place of AUG, GUG normally stands for ___________.

A
Valine
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B
Glycine
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C
Methionine
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D
Tyrosine
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Solution

The correct option is A Valine
In, DNA the start codon initiates the translation of the first amino acid in the polypeptide chain. The most common start codon is AUG and codes for methionine. GUG is an efficient initiation codon or start codon and codes for Valine. AUG is the start codon 83% of the time and GUG 14% of the time
So, the correct answer is "A Valine".

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