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vestigial fly crosses with ebony fly, the expected genotype of F1 offspring are ?

vestigial fly crosses with ebony fly, the expected genotype of F1 offspring are ?

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Answer #1

genes responsible for the vestigial wings and ebony body are located on the autosomes.

let the alleles be vg+- wildtype, vg- vestigial, eb+- ebony, eb- ebony

vestigial fly is homozygous for the vg so the genotype is vgvgeb+eb+ and the genotype of the ebony fly is vg+vg+ebeb.

vestigial * ebony

vgvgeb+eb+ * vg+vg+ebeb

vg+vgeb+eb (F1)

F1 is heterozygous at both loci, so both genes have functional alleles of both genes so the phenotype of the progeny is wildtype.

expected genotype of F1 progeny is vg+vgeb+eb.

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