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

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYPrinciples of Inheritance and Variation1 Mark
MCQ
In sickle cell anaemia$, \text{RBC}$ becomes:
  • ✓
    Sickle shaped
  • B
    More flexible and strong
  • C
    No change in shape or size
  • D
    Is genetically inherited
✓

Answer

Correct option: A.
Sickle shaped
Sickle cell disease is an inherited blood disorder that affects red blood cells. People with the sickle cell disease have red blood cells that contain mostly haemoglobin $S,$ an abnormal type of haemoglobin. Sometimes, these red blood cells become sickle$-$shaped $($crescent shaped$)$ and have difficulty passing through small blood vessels.

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