The one that does not stabilize $2^{\circ}$ and $3^{\circ}$ structures of proteins is

Example$(s)$ of aromatic amino acid is/are:

Read the following statements carefully:
$(A)$ Albumin is a simple protein.
$(B)$ The amino acid alanine contains an acidic side chain.
$(C)$ Insulin is a hormone.
$(D)$ Muscles contain the protein keratin.
Point out the wrong statements in the above set of statements.

Which one of the following biomolecules is insoluble in water?

What are the common types of secondary structure of proteins?

The total number of isomeric linear dipeptides which can be synthesised from racemic alanine is