Q. Haemoglobin molecule is made up of
A) One $\alpha$-chain and one $\beta$-chain
B) Two $\alpha$-chains and two $\beta$-chains
C) Two $\alpha$-chains and one $\beta$-chain
D) One $\alpha$-chain and two $\beta$-chains
Explanation
Haemoglobin molecule is made up of two $\alpha$-chains, which have 141 amino acids and two $\beta$–chains with 146 amino acids each.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.