In a protein molecule,various amino acids are linked together by:

Determine the configuration of the given compound.

Total number of tripeptides possible by mixing of valine and proline is $............$.

Given below are two statements,one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$: $A$ solution of the product obtained by heating a mole of glycine with a mole of chlorine in the presence of red phosphorus generates a chiral carbon atom.
Reason $R$: $A$ molecule with $2$ chiral carbons is always optically active.
In the light of the above statements,choose the correct answer from the options given below:

Identify the amino acids obtained by hydrolysis of the following compound: $NH_2-CH(CH_3)-CO-NH-CH_2-COOH$

Which of the following is $NOT$ a globular protein?