A.Reduction in RBCs due to excess oxygen tension
B.Defect in beta-chain of haemoglobin
C.Defect in alpha-chain of haemoglobin
D.None of these
A.Reduction in RBCs due to excess oxygen tension
B.Defect in beta-chain of haemoglobin
C.Defect in alpha-chain of haemoglobin
D.None of these