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Pick out the correct statements.

(1) Haemophilia is a sex-linked recessive disease.

(2) Down's syndrome is due to aneuploidy.

(3) Phenylketonuria is an autosomal recessive gene disorder.

(4) Sickle cell anaemia is an X-linked recessive gene disorder.

(a) (1), (3) and (4) are correct.

(b) (1), (2) and (3) are correct.

(c) (1) and (4) are correct.

(d) (2) and (4) are correct.

1 Answer

Best answer
(b) (1), (2) and (3) are correct

Explanation: Sickle cell anaemia is an autosomal recessive disorder.
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