if a heterozygous red eyed female fruit fly red eyed male fruit fly work our all possible genotype - Biology - Principles of Inheritance and Variation

Question

if a heterozygous red eyed female fruit fly red eyed male fruit fly
work our all possible genotype

Tanvi Nambiar · Accepted Answer

I'm not very sure but I guess this will help
We carry out test cross between unknown dominant genotype and
homozygous recessive trait
CASE 1
XRXR x XRY
CASE 2

XRXr x X​RY
Note: Here 'R' is dominant red eye while 'r' is recessive white
eye
Hope this helps
Cheers x

if a heterozygous red eyed female fruit fly red eyed male fruit fly.work our all possible genotype.