Disjunction and Aneuploidy??

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Disjunction and Aneuploidy??

Post by scrnnamepending » Wed Oct 14, 2009 3:15 pm

Meiosis can fail to separate chromosomes at either Meiosis I or meiosis II resulting in aneuploidy. Assume a female has two versions of X chromosomes. The male has one X chromosome and one Y chromosome and they have children with XXY. (Klinefelter's) Evaluate each of the following possibilities as possible or not possible. For any possibilities list all of the combinations of chromosomes that might be present in their child (eg. X^f1, X^f2, Y^m)

1) A disjunction during meiosis I in the father's sperm production.
2) A disjunction during meiosis II in the father's sperm production.
3) A disjunction during meiosis I in the mother's egg production.
4) A disjunction during meiosis II in the mother's egg production.

Absolutely No idea how to do this...if anyone could just guide me in the right direction, you don't even have to answer it, just somehow give me some tips or something?

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Post by MrMistery » Wed Oct 14, 2009 10:05 pm

do you know what disjunction means? it's not that hard, you have to understand how meiosis works, and what is meant by disjunction and aneuploidy.
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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