Structure and Properties of Peptides
Hemoglobin has quaternary structure and is made up of

four polypeptide chains, two α-chains and two β-chains
two polypeptide chains, one α-chains and one β-chains
five polypeptide chains, two α-chains and three β-chains
six polypeptide chains, two α-chains and four β-chains

ANSWER DOWNLOAD EXAMIANS APP

Structure and Properties of Peptides
The Ramachandran Plot illustrates the fact that

the F & Y angles can assume any value in a peptide
the F & Y angles can assume approximately three different values
the peptide bond is planar
the F & Y angles can assume only a single value in a protein

ANSWER DOWNLOAD EXAMIANS APP