Question
Chemistry Question on Amino Acids
Which one of the following pairs of amino acids is NOT incorporated in a polypeptide chain?
A
4-Hydroxyproline and γ-carboxyglutamate
B
γ-Carboxyglutamate and desmosine
C
Ornithine and citrulline
D
4-Hydroxyproline and 5-hydroxylysine
Answer
Ornithine and citrulline
Explanation
Solution
The correct option is (C) :Ornithine and citrulline.