What is the genetic disorder in which blood clotting proteins are defective causing excessive bleeding after minor injuries?
1 Answer
Jan 30, 2018
It is Haemophilia .
Explanation:
Haemophilia is also known as Bleeder's disorder or disease. It is a defect of blood which prevents its clotting.
Haemophiliacs bleed excessively when injured.
History -
It was first reported by John Otto in 1803 .
Queen Victoria of England was a carrier & her son had this defect.
Causes-
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Its is a sex linked trait, caused by recessive gene 'h' located in X chromosome.
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The gene controls the synthesis of protein needed for the clotting of blood.
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Normal blood is dominating. It occurs primarily in males: females CAN be affected, but only if they inherit two affected X-chromosomes, I.e if the father is a haemophiliac, and the mother is a carrier...
