Solveeit Logo

Question

Biology Question on Principles of Inheritance and Variation

Which of the following is not a hereditary disease?

A

cystic fibrosis

B

thalassaemia

C

haemophilia

D

cretinism.

Answer

cretinism.

Explanation

Solution

Cretinism occurs due to hyposecretion of thyroid hormones. Haemophilia is a sex linked recessive trait. Cystic fibrosis is also a recessive autosomal disorder resulting in mucus clogging in lungs. Thalassemia involves a gene mutation in the polypeptide chains of haemoglobin.