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ExamsNEETBiology

The most striking example of point mutation is found in a disease called

  1. thalassemia
  2. night blindness
  3. down's syndrome
  4. sickle cell anaemia

Correct answer: sickle cell anaemia

Solution

Sickle cell anaemia is the classic example of a point mutation because it results from a single nucleotide substitution in the beta-globin gene. This tiny DNA change causes a major change in hemoglobin structure and red blood cell shape.

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