nondisjunction

nondisjunction - Meiosis I prior to meiosis X Y prior to...

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Worksheet on non-disjunction: (a) Fill in the cells below showing the NORMAL process of meiosis of the male’s sex chromosomes (XY – the X and Y are representing the entire chromosome, and remember X and Y act like a homologous pair). For the X chromsome in a duplicated state I would use (XX) to show it is duplicated). DO NOT show crossing over. (b) Fill in the cells below showing the process of meiosis of the male’s sex chromosomes with non- disjunction occurring during meiosis I . DO NOT show crossing over. What are the possible abnormal gametes the male can produce with non-disjunction occurring in
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Unformatted text preview: Meiosis I? prior to meiosis X Y prior to meiosis X Y Could this man father a Tuner syndrome (XO) child? Could this man father a Klenfelter’s syndrome child (XXY)? (c) Fill in the cells below showing the process of meiosis of the male’s sex chromosomes with non-disjunction occurring during meiosis II . DO NOT show crossing over. What are the possible abnormal gametes the male can produce with non-disjunction occurring in Meiosis II? Could this man father a Tuner syndrome (XO) child? Could this man father a Klenfelter’s syndrome child (XXY)? X Y prior to meiosis...
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