Question

Given below are two statements, one is labelled as Assertion (A) and other labelled as Reason (R).
Assertion (A): In eukaryotic cells, the newly synthesized polypeptide chain is often modified after translation.
Reason (R): Post-translational modifications such as phosphorylation, glycosylation, and cleavage may occur to the polypeptide chain to attain its functional form.
In light of the above statements, choose the most appropriate answer from the options given below.

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A).
• B. Both (A) and (R) are correct but (R) is NOT the correct explanation of (A).
• C. (A) is correct but (R) is not correct.
• D. (A) is not correct but (R) is correct.

Hint:

Remember that "translation" only produces a linear chain of amino acids.
Post-translational modifications (PTMs) like phosphorylation and glycosylation are required to convert this raw chain into a functional, three-dimensional protein.

Answer 1

The Correct Option is A