A Cross between white eyed mutant Female: Xw/Xw and mutant male who has Cy/Pm/D/

Question

A Cross between white eyed mutant Female: Xw/Xw and mutant male who has Cy/Pm/D/Sb. The male is heterozygous for the four dominant mutant genes Cy, Pm, D, and Sb, each of which is lethal when homozygous. I need to know what mutations their off spring will have. I'm not sure how to do the cross.

Cy = curly wings

Pm = plum eyes

D = diachaete wings

Sb = stubble (bristles)

Curly-wings are homozygous lethal

Plum eyes are homozygous lethal

Dichaete-wings are homozygous lethal

Stubble-bristles are homozygous lethal

Explanation / Answer

1 gamet will be prodec from female Xw

In males 8 different types of gamets can be produced.Cy, Cy+, Pm, Pm+, D, D+, Sb, Sb+

by this info you can predict the mutations in off spring.

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