Q.

Which one of the following is a hereditary disease?

A. Cataract
B. Haemophilia
C. Pellagra
D. Osteoporosis
Answer» B. Haemophilia
Explanation: In this instance, a specific gene from one or both parents leads to an abnormality.Examples of such a condition would be sickle cell anemia, cystic fibrosis, or hemophilia.
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