NEET | 2016Principle of Inheritance and VariationHard
Question
Which of the following most appropriately describes hemophilia?
Options
A.
Recessive gene disorder
B.
X - linked recessive gene disorder
C.
Chromosomal disorder
D.
Dominant gene disorder
Solution
Genes related with hemophilia are always present on X chromosome and it is a recessive gene disorder as it expresses itself in females when it comes a homozygous condition. It causes a defect in the clotting factor formation, thus a simple cut can bleed continuously leading to even death. Thus, it is also known as ‘Bleeders’ disease or ‘Royal Disease’ as Queen Victoria is a carrier for this disease.
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