Pick out the correct statements
(a) Haemophilia is a sex linked recessive disease
(b) Down’s syndrome is due to aneuploidy
(c) Phenyl ketonuria is an autosomal recessive gene disorder.
(d) Sickle cell anaemia is an X – linked recessive gene disorder
(a), (b) and (c) are correct
Sickle cell anaemia is an autosomal recessive gene disorder.