Question

what is point mutation ex​

Answer 1

Answer:

Sickle cell anaemia is the example of point mutation

Answer 2

Answer:

1. Point mutation is a change in a single base pair of DNA by substitution, deletion, or insertion of a single nitrogenous base.
2. An example of point mutation is sickle cell anaemia.
3. It involves mutation in a single base pair in the beta-globin chain of haemoglobin pigment of the blood.
4. Glutamic acid in short arm of chromosome II gets replaced with valine at the sixth position.