Bio-Chemistry (M.Phil./Ph.D.) 2015 Panjab University Entrance Exam With Answers

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13.

Which of the following statements about collagen is correct ?

A: Collagen contains a high proportion of hydroxylated proline residues.
B: Collagen is a globular,intracellular protein.
C: Post-translational modi of collagen involves vitamin A.
D: The structure of collagen consists of a superhelix of three a helices twisted together.

The answer is: A