In humans, XO individuals are females with Turner syndrome and XXY individuals are males with Klinefelter syndrome.Red-green color blindness is caused by an X-linked recessive allele.Suppose a color-blind man and a woman with normal vision and no family history of color blindness married and had a daughter who was color blind and had Turner syndrome.Which event could have given rise to this offspring?
A)nondisjunction at meiosis I in the mother
B)nondisjunction at meiosis II in the mother
C)nondisjunction at meiosis I in the father
D)nondisjunction at meiosis II in the father
E)nondisjunction at either meiosis I or meiosis II in the mother

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The Answer of In humans, XO individuals are females with Turner syndrome and XXY individuals are males with Klinefelter syndrome.Red-green color blindness is caused by an X-linked recessive allele.Suppose a color-blind man and a woman with normal vision and no family history of color blindness married and had a daughter who was color blind and had Turner syndrome.Which event could have given rise to this offspring?
A)nondisjunction at meiosis I in the mother
B)nondisjunction at meiosis II in the mother
C)nondisjunction at meiosis I in the father
D)nondisjunction at meiosis II in the father
E)nondisjunction at either meiosis I or meiosis II in the mother

In Humans, XO Individuals Are Females with Turner Syndrome and XXY