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In Drosophila, normal wings (+) are dominant to vestigial wings (vg) and the presence of eyes (+) is dominant to being eyeless (ey). The offspring of a cross between two unknown parents yielded the following results: 299 normal winged, normal eyed flies; 106 normal winged, eyeless flies; 99 vestigial winged, normal eyed flies, and 33 vestigial winged, eyeless flies.

What genotypes did the parent generation most likely possess?


+vg/+ey x +vg/+ey


vgvg/++ x ++/eyey


++/++ x vgvg/++


vgvg/eyey x +vg/eyey


+vg/+ey x vgvg/eyey

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