- October 14, 2009 at 3:15 pm #12015scrnnamependingParticipant
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?
- October 14, 2009 at 10:05 pm #93722MrMisteryParticipant
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.
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