A) Recessive character carried by Y-chromosome
B) Dominant character carried by Y-chromosome
C) Dominant trait carried by X-chromosome
D) Recessive trait carried by X-chromosome
Correct Answer: D
Solution :Haemophilia is a disorder, which is sex-linked (X-chromosome) recessive condition. Males have only one X-chromosome, so this disease appears in them more than female as they have 2X-chromosomes.
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