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Haemophilia results from the mutation of the genes

Biology
JAMB 1990

Haemophilia results from the mutation of the genes

  • A. in the sex chromosome
  • B. which control skin colour
  • C. which control the mechanism for blood-clotting
  • D. which control the formation of haemoglobin
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Correct Answer: Option A
Explanation

Hemophilia is a bleeding disorder where the blood takes much longer to clot than normal. This is because the genes responsible for producing certain clotting factors, like factor VIII (Hemophilia A) or factor IX (Hemophilia B), are mutated. Haemophilia results from mutations in genes on the X chromosome, which are responsible for producing blood clotting factors.


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