What kind of meiotic non-disjunction can lead to an XXY son? a)Non-disjunction at meiosis I in...
What kind of meiotic non-disjunction can lead to an XXY son?
a)Non-disjunction at meiosis I in the formation of eggs
b)Non-disjunction at meiosis I in the formation of sperm
c)Non-disjunction at meiosis II in the formation of eggs.
d)Non-disjunction at meiosis II of the Y chromosome in the formation of sperm
e)All except d
Homework Answers
The correct option is (a) Non-disjunction at meiosis I in the formation of eggs.
It is because klinefilter syndrome is a condition in which males are born with extra X-chromosome.In this case, one egg receives both of the X-chromosome and the other one receives none. When this egg with two X-chromosome fuses with a normal sperm, it forms a condition of klinefilters.
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What kind of meiotic non-disjunction can lead to an XXY son?
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