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Principles of Inheritance and Variation — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYPrinciples of Inheritance and Variation1 Mark
MCQ
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.
✓

Answer

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

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