# DO Australians have more XYY chromosomes than usual?

**URL:** <https://boards.straightdope.com/t/do-australians-have-more-xyy-chromosomes-than-usual/801216>\
**Category:** Factual Questions\
**Created:** [November 10, 2017, 12:26pm UTC](https://boards.straightdope.com/t/do-australians-have-more-xyy-chromosomes-than-usual/801216 "2017-11-10T12:26:30Z")\
**Posts on this page:** 1\
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**Author:** ![gozonuts](https://avatars.discourse-cdn.com/v4/letter/g/e9bcb4/32.png) [@gozonuts](https://boards.straightdope.com/u/gozonuts)\
**Post date:** [November 10, 2017, 12:26pm UTC](https://boards.straightdope.com/t/do-australians-have-more-xyy-chromosomes-than-usual/801216/1 "2017-11-10T12:26:30Z")

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Assuming the premise that the criminal population generally has more cases of XYY chromosomes than the general public, would it follow that Australians would have more cases of this in their gene pool? Australia of course was a penal colony not too long ago and the gene pool is relatively small and closed off. I would assume a study would not have been done on this as it is not too flattering nor PC.

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