Q. The most important example of point mutation is found in a disease called
A) Thalassemia
B) Night blindness
C) Down’s syndrome
D) Sickle-cell anaemia
Explanation
Sickle-cell anaemia is caused due to base replacement leading to replacement of sixth amino acid in the β-chain. Glutamic acid is replaced by valine and causes sickle cell anaemia.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.