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NEETZoologyPrinciples of Inheritance and Variation

What does the family pedigree of Queen Victoria reveal about her?

Options

  1. AShe was affected by sickle-cell anaemia
  2. BShe had a normal gene for Haemophilia
  3. CShe was a carrier of Haemophilia
  4. DShe was completely unaffected by Haemophilia

Correct answer

C. She was a carrier of Haemophilia

Step-by-step solution

This sex linked recessive disease, which shows its transmission from unaffected carrier female to some of the male progeny has been widely studied. In this disease, a single protein that is a part of the cascade of proteins involved in the clotting of blood is affected. Due to this, in an affected individual a simple cut will result in non-stop bleeding. The heterozygous female (carrier) for haemophilia may transmit the disease to sons. The possibility of a female becoming a haemophilic is extremely rare because mo

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