Question :Pick out the correct statements. I. Haemophilia is a sex-linked recessive disease. II. Down.s syndrome is due to aneuploidy. III. Phenylketonuria is an autosomal recessive gene disorder. IV. Sickle-cell anaemia is an X-linked recessive gene disorder.

Question :Pick out the correct statements. I. Haemophilia is a sex-li

1.	Question :Pick out the correct statements. I. Haemophilia is a sex-linked recessive disease. II. Down.s syndrome is due to aneuploidy. III. Phenylketonuria is an autosomal recessive gene disorder. IV. Sickle-cell anaemia is an X-linked recessive gene disorder.
Answer» II and IV are CORRECT I, III and IV are correct I, II and III are correct I and IV are correct Solution : I, II and III are correct