The water-soluble protein is:

$A$ sequence of how many nucleotides in messenger $RNA$ makes a codon for an amino acid?

$A$ dipeptide,$X$ on complete hydrolysis gives $Y$ and $Z$. $Y$ on treatment with aqueous $HNO_2$ produces lactic acid. On the other hand,$Z$ on heating gives the following cyclic molecule.
Based on the information given,the dipeptide $X$ is:

Antibodies are

Which of the following amino acids does $NOT$ contain a chiral carbon?

The number of disulphide linkages present in insulin are