Casein present in milk is a/an .......

Thyroxine,adrenaline,and melanin pigment are derived from which of the following amino acids?

The specificity of a protein is due to the .......

Which structure of protein is linear and contains only peptide bonds?

How many water molecules are released during the formation of a dipeptide when two amino acids bind (in $-H_2O$)?

In protein synthesis,the first amino acid is known as $.....P.....$ and the last amino acid is known as $.....Q.....$.