Among the most common correlates of chromosomal abnormalities, such as down syndrome and klinefelter syndrome, is:

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asked Apr 13, 2018 207k views

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Dopamane · Answer 1 · 2018-04-19T09:05:10+0000

Nondisjunction. This results in a sperm or egg cell having 24 chromosomes instead of the usual 23. This happens prior to conception.