Biology Biotechnology and Its Application Biotechnological Applications in Medicine Single Correct MCQ
Published on: August 12, 2026

What is correct about insulin?

A
Two short polypeptide chains
B
Polypeptide chains are linked together by disulphide bridges.
C
In mammals insulin is synthesized as a prohormone.
D
All the above

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The correct answer is:
D

Insulin has two polypeptide chains (A and B)

They are linked by disulfide bonds

In mammals, insulin is first made as a prohormone (proinsulin).

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