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.
Held on 30 Apr 2016 · Verified 9 Jul 2026.
(i) and (iv) are correct
(ii) and (iv) are correct
(i), (iii) and (iv) are correct
(i), (ii) and (iii) are correct
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