Given below is a pedigree chart showing the in-heritance of a certain sex-linked trait in humans.

The trait traced in the above pedigree chart is

Options

A. Dominant X-linked
B. Recessive X-linked
C. Dominant Y-linked
D. Recessive Y-linked

Answer

A

Explanation

Since both progeny and parent are affected thus it is a dominant trait and both male and female are affected thus it is a X – linked dominant trait.