The first amino acid in any polypeptide chain of prokaryote is always
A
Formylated methionine
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B
Formylated arginine
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C
Lysine
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D
Methionine
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Solution
The correct option is C Formylated methionine The first amino acid in any polypeptide chain of a prokaryote is always formylated methionine. The first amino acid is methionine in eukaryotes. This is because AUG is a start codon that codes for formylated methionine in prokaryotes and methionine in eukaryotes.
Thus, the correct answer is 'Formylated methionine.'