In $\text{alanyl-glycyl-leucyl-alanyl-valine}$,the number of peptide linkages is $......$

Assertion : At isoelectric point,the amino acid does not migrate under the influence of an electric field.
Reason : At isoelectric point,amino acid exists as a zwitterion.

Which gas is found in the form of proteins in plants and animals?

If there are $20$ naturally occurring amino acids,what is the maximum number of tripeptides that can be formed?

Which of the following amino acids is optically inactive?

The secondary structure of proteins is stabilized by which bond?