The trait traced in the above pedigree chart is
A) dominant X-linked
B) recessive X-linked
C) dominant Y-linked
D) recessive Y-linked
Correct Answer: A
Solution :
The disease in the given pedigree chart is X-linked dominant because, it is inherited by female child from her father and none of the male child is affected (X-linked). As disease expressed in female inspite of two XX chromosomes, it will be dominant.
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