Question

White eye color is an x-linked trait in one line of fruit flies. White eyes is recessive to red eyes. If a red-eyed female and a white-eyed male are crossed, _______.

Answer 1

Xw Xw = White eyes female

XW Xw = Red eyes female

XW XW = Red eyes female

XW Y = Red eye male

Xw Y = White eye male

Red eye female = XW Xw or XW XW

White eye male = Xw Y

XW XW mixed Xw Y
100% red eyes (both male and female)

XW Xw mixed Xw Y
Out of girls, 50% red eyes
Out of boys, 50% red eyes
Both genders have a 50% chance of getting white eyes

I hope this helps!