| Directions : (1 - 15) |
| For question numbers 1-15, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices. |
| Assertion : Cysteine can cross link peptide chains. |
| Reason : Ammo acids are classified as essential and non-essential amino acids. |
A) Assertion and reason both are correct statements and reason is correct explanation for assertion.
B) Assertion and reason both are correct statements but reason is not correct explanation for assertion.
C) Assertion is correct statement but reason is wrong statement.
D) Assertion is wrong statement but reason is correct statement.
Correct Answer: B
Solution :
Cysteine can cross link peptide chains through disulphide bridge. Cross linking by disulphide bridge can occur either between the distant, properly oriented parts of the same polypeptide chain (as in oxytocin or vasopressin) or between different polypeptide chains.
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