Asked • 06/15/19

What causes XYY Syndrome?

It's obvious how a misdisjunction can result in klinefelter's syndrome (XXY) but I don't see how this can result in XYY syndrome. Your parents have a collective total of only one Y chromosome so how can any misdisjunction result in a child with two Y chromosomes?

2 Answers By Expert Tutors

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Nessim A. answered • 06/15/19

MD MPH MPS grad, tutoring biology and medical courses

Sahil P. answered • 06/15/19

Aspiring Surgeon

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