Miniature wings in Drosophila are due to an X-linked allele (X^m) that is recessive to the wild-type allele for normal long wings (X⁺). Sepia eyes are produced by an autosomal allele (se), which is recessive to the wild-type allele for red eyes (se⁺). A female that is homozygous for normal wings and has sepia eyes is crossed with a male that has miniature wings and is homozygous for red eyes. The F₁ offspring are intercrossed to produce the F₂ generation. What proportion of the F₂females is expected to have miniature wings and sepia eyes?

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The Answer of Miniature wings in Drosophila are due to an X-linked allele (X^m) that is recessive to the wild-type allele for normal long wings (X⁺). Sepia eyes are produced by an autosomal allele (se), which is recessive to the wild-type allele for red eyes (se⁺). A female that is homozygous for normal wings and has sepia eyes is crossed with a male that has miniature wings and is homozygous for red eyes. The F₁ offspring are intercrossed to produce the F₂ generation. What proportion of the F₂females is expected to have miniature wings and sepia eyes?

Miniature Wings in Drosophila Are Due to an X-Linked Allele