Amino acids are produced on hydrolysis of:

Which of the following amino acids contains an alcohol functional group?

Assertion $(A)$: In aqueous solution,$\alpha$-amino acids exist as an internal salt called a zwitter ion.
Reason $(R)$: Proline is a natural amino acid having a secondary amino group. The correct option among the following is:

Which of the following tests cannot be used for identifying amino acids?

$\beta-$pleated sheets of polypeptide chains are present in

Alanine $\xrightarrow{\Delta }$ Product,total number of products formed in this reaction.