In Drosophila, an individual female fly was observed to be of the XXY chromosome complement (normal autosomal complement) and to have white eyes as contrasted with the normal red eye color of wild type. The female\'s father had red eyes, and the mother had white eyes. Knowing that white eyes are X-linked and recessive, in what parent and at what stage did nondisjunction occur to produce this XXV, while-eyed female fly? Select all that apply. melosis I In the mother meiosls II in the mother melosis I In the father melosis II In the father Solution b)meiosis II in the mother as one pair of sister chromatids did not seperate since we have XXY not XXYY.This is why it occurs in meisis 2 and in the mother since XXY represents a femle..

1. In Drosophila, an individual female fly was observed to be of the XXY chromosome
complement (normal autosomal complement) and to have white eyes as contrasted with the
normal red eye color of wild type. The female's father had red eyes, and the mother had white
eyes. Knowing that white eyes are X-linked and recessive, in what parent and at what stage did
nondisjunction occur to produce this XXV, while-eyed female fly? Select all that apply. melosis
I In the mother meiosls II in the mother melosis I In the father melosis II In the father
Solution
b)meiosis II in the mother as one pair of sister chromatids did not seperate since we have XXY
not XXYY.This is why it occurs in meisis 2 and in the mother since XXY represents a femle.