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

TestHub · Accepted Answer

Haemophilia 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.

Zoology - Principles of Inheritance and Variation Question with Solution | TestHub

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