In the given reaction: $CH_3-CHCl-COOH \xrightarrow[(ii) H_2O]{(i) NH_3 (1 \text{ mole})} [X]$. Product $[X]$ will be:

The number of chiral carbon(s) present in the peptide, $Ile-Arg-Pro$, is......

In the following compound,the favourable site/s for protonation is/are:
(Image description: Adenine structure with labels $a$ on the exocyclic $-NH_2$ group,$b$ on the pyrimidine ring nitrogen,$c$ on the other pyrimidine ring nitrogen,$d$ on the imidazole ring nitrogen,and $e$ on the imidazole ring $-NH-$ group.)

Identify the fibrous protein from the following.

Which of the following is the correct structure of $L$-alanine?

The general formula of an $\alpha$-amino acid is shown below. Identify the side chain $-R$ for the amino acid serine.