Question

In fruit flies, the allele for an ebony coloured body is recessive to the allele for a grey coloured

body. In an investigation, an ebony-bodied fly is crossed with a grey-bodied fly.
What will be the body colour of the offspring if the grey-bodied fly is heterozygous?

Answer 1

50% heterozygous (50% with grey bodies)

50% homozygous recessive (50% with ebony bodies)

G g

g Gg gg

g Gg gg