Question

Which of the following is a classic example of point mutation

• A. Sickle cell anaemia
• B. Phenylketonuria
• C. Haemophilia
• D. Thalassemia

Answer 1

Answer:

A. Sickle cell anaemia

• Point mutation is a change in a single base pair of DNA by substitution, deletion, or insertion of a single nitrogenous base.

• An example of point mutation is sickle cell anaemia.

• It involves mutation in a single base pair in the beta-globin chain of haemoglobin pigment of the blood.