A) (i) and (iv) are correct
B) (ii) and (iv) are correct
C) (i), (iii) and (iv) are correct
D) (i), (ii) and (iii) are correct
Correct Answer: D
Solution :Hemophilia is a sex - linked recessive disease in which there is a problem in clotting of blood. Down?s syndrome (trisomy 21) is caused due to aneuploidy. Phenylketonuria is an autosomal recessive gene disorder. Sickle cell anaemia is autosomal recessive gene disorder.
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