Question

Assertion(A) : $\alpha$-amino acids are the building blocks of proteins.
Reason(R) : Natural amino acids are mostly $\alpha$-amino acids.

• A. Both A and R are true and R is the correct explanation of A
• B. Both A and R are true but R is not correct explanation of A
• C. A is true but R is false
• D. A is false but R is true

Answer 1

The correct option is A Both A and R are true and R is the correct explanation of A

$\alpha$-amino acids are the building blocks of proteins. Proteins on hydrolysis exclusively give $\alpha$-amino acids. Amino acids can be classified into $\alpha ,\beta ,\gamma$ etc.
Natural amino acids are mostly $\alpha$-amino acids. Thus both A and R are true and R is the correct explanation of A.