Question 2 A normal XX woman undergoes non-disjunction of one of her X-chromosom

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Question 2 A normal XX woman undergoes non-disjunction of one of her X-chromosomes in one of the cells of her ovary during meiosis I. What types of gametes does the woman produce from this cell (where O indicates there are no X chromosomes)? a. 1/2 XX and ½ O b. 1/2 XX and 1/2 X c. 1/2 X and 1/2 O d. 1/4 XX and 1/4 O and 112 X Question 3 A normal XY male undergoes non-disjunction of his sex chromosomes during meiosis I. Which of the following offspring could result from a mating with a normal XX woman? a. XXX and YO b. XXY and XO c. XX and XY d. XYY and XX

Explanation / Answer

Q2). a. 1/2 XX and 1/2 0

Q3) b. XXY and X0

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