A cross was setup between virgin brown eyed females with sc

A cross was setup between virgin brown - eyed females with scarlet males. What are the expected genotypes and phenotypes of F₁ flies from this cross? If F₁ males and females are crossed, what genotypic and phenotypic ratio would be expected in the F₂ progeny? The genes for brown and scarlet eyes are on different autosomes. Show your work.

Solution

ans

Cross between brown eyed females with scarlet males

BB x bb ( BB= brown eyed female, bb= scarlet eyed male

All brown eyed and none of the progeny is scarlet eyed

100% of the progeny is brown eyed

F2 generation gives 9:3:3:1 ratio