Sickle-cell anaemia
(I) Follows the same inheritance pattern as that of haemophilia
(II) Follows the same inheritance pattern as that of albinism
(III) Is a sex-linked trait
(IV) Is due to a single recessive point mutation leading to the substitution of a single amino acid in the B-chain of Haemoglobin
Choose the correct option
A. I,II,III and IV
B. II, III and IV
C. I, II and IV
D. II and IV
