Given below is a pedigree chart showing the inheritance of a certain sex-linked trait in humans.
The trait traced in the above pedigree chart is
A
Dominant X-linked
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B
Recessive X-linked
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C
Dominant Y-linked
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D
Recessive Y-linked
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Solution
The correct option is A Dominant X-linked As there is no skipping of generation, the trait should be dominant. And as there is no father to son transmission it can not be Y linked. So the trait is X linked dominant.