UPSC Biology Genetics Question Bank Genetics and Biotechnology

  • question_answer
          Sickle cell anaemia is

    A) caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin.

    B) caused by a change in a single base pair of DNA.

    C) characterized by elongated sickle like RBCs with a nucleus.

    D) an autosomal linked dominant trait.

    Correct Answer: B


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