Assertion (A) All naturally occurring `alpha`-aminoacids except glycine are optically active.
Reason (R) Most naturally occurring amino acids have L-configuration.

In the following questions a statement of Assertin (A) followed by a statement of Reason (R) is give. Choose the correct answer out of the following choices. Assertion (A): All naturally occurring alpha -amino acids except glycine are optically active Reason (R): Most naturally occuring amino acids have L-configuration.

Assertion: All naturally occuring alpha -amino acids are optically active Reason: Most naturally occuring amino acids have D-configuration.

Assertion: All naturally occuring alpha -amino acids are optically active Reason: Most naturally occuring amino acids have D-configuration.

Naturally occurring alpha aminoacid, histidine is_____in nature

Assertion: Except glycine, all naturally occurring alpha -amino acids are optically active. Reason : All alpha -amino acids occurring naturally except glycine has at least one asymmetric carbon.

Except glycine all other naturally occurring amino acids are optically active.