What is the genotype of the wild-type mother of these progeny?

In Drosophila, the autosomal recessive pr and cn mutations cause brown and bright-red eyes, respectively (wild-type flies have brick-red eyes). Flies who are homozygous recessive at both pr and cn have orange eyes. A female who has wild-type eyes is crossed to an orange-eyed male. Their progeny have the following distribution of eye colors:







A) pr cn / pr+cn+

B) pr+cn / pr+cn

C) pr+cn / pr cn+

D) pr cn+ / pr cn+

E) pr cn / pr cn


C) pr+cn / pr cn+

Biology & Microbiology

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