Which of the following is not a hereditary disease?
Cretinism
The correct option is C.
Explanation of the correct option:
Option A:
Thalassaemia is an autosomal recessive disorder.
Option B:
Cystic fibrosis is an autosomal recessive disorder.
Option D:
Haemophilia is a sex-linked recessive disorder.
Final answer: Cretinism is not a hereditary disease.