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NEET2009ZoologyPrinciples of Inheritance and VariationActual

Sickel cell anemia is :

Options

  1. ACharacterized by elongated sickle like RBCs with a nucleus
  2. BAn autosomal linked dominant trait
  3. CCaused by substitute of valine by glutamic acid in the beta globin chain of haemoglobin
  4. DCaused by a change in a single base pair of DNA

Correct answer

D. Caused by a change in a single base pair of DNA

Step-by-step solution

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