Question 52
Mendelian InheritanceWhich of the following diseases or disorders can be prevented by the application of the knowledge of heredity through marriage counselling?
- A.Sickle cell anaemia
- B.Haemophilia
- C.Diabetes mellitus
- D.Colour blindness
- E.River blindness
Show the answer and explanation
Answer: A (Sickle cell anaemia)
Explanation
Two AS carriers can be advised of the 1 in 4 chance of an SS child; genotype testing before marriage helps prevent sickle cell anaemia.