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Features of Codon

Which one of ...

Question

Which one of the following triplet codon is known as initiation codon?

A

UUU

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B

UAA

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C

AUG

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D

UGA

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Solution

The correct option is C AUG
The start codon is the first codon of a messenger RNA (mRNA) transcript translated by a ribosome. The start codon always codes for methionine in eukaryotes and a modified Met (fMet) in prokaryotes. The most common start codon is AUG.

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