A child is born with Turner's syndrome and she is red green color blind (recessive X-linked). Her father is red green color blind as well and her mother is homozygous dominant for color sight. What had to happen in order for this child to be born with

this chromosomal complement?

A) nondisjunction in either meiosis I or meiosis II of the mother
B) nondisjunction in either meiosis I or meiosis II of the father
C) nondisjunction in meiosis II of the mother
D) nondisjunction in meiosis II of the father
E) nondisjunction in meiosis I of the father


Answer: A

Biology & Microbiology

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