Answer: p= 0.25
Explanation:
Assumptions
white eyes are recessive, single gene, not sex-linked
cross is
Ww x ww —> Ww, ww p(ww) = 0.5
XX x XY —> XX, XY p(XY) = 0.5
p(XYww) = 0.25
If the white eye gene is sex-linked, the cross is
XXWw x XYw-
XW Xw x Xw Y- —> XXWw, XYW-, XXww, XYw-, p(XYw-) = 0.25
