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XYY Syndrome

February 2, 2016Leave a Comment

XYY Syndrome is a genetic condition that occurs when a male’s genes have an extra Y chromosome. Females typically have two X chromosomes (XX). Males typically have one X chromosome and one Y chromosome (XY). Males with this genetic condition have an extra copy of the Y chromosome in each of their cells (XYY).

Most people have 46 chromosomes in each cell. Males with XYY syndrome have 47 because of the extra copy of the Y chromosome. However, sometimes this mutation is only present in some cells. According to the National Institutes of Health, XYY syndrome occurs in 1 out of every 1,000 boys (Genetics Home Reference).

XYY Syndrome is also sometimes called Jacob’s Syndrome, XYY Karyotype, or YY Syndrome.

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Hello. my name is Isabel and this blog is all about my experiences dealing with infertility, recurrent pregnancy loss, and our new adventure as intended parents in our surrogacy journey. Also, a little bit of everything else in my life. Welcome! read more...

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