Reply to post: Re: DNA and ffingerprints's Wayback Machine is legit legal evidence, US appeals court judges rule

katrinab Silver badge

Re: DNA and ffingerprints

"Chimerism is a recognised condition, thought to be very rare."

Correction: Chimerism is a recognised condition, thought to be very common.

For example, 90% of women who have been pregnant or had unprotected sex (which could mean, they were pregnant and miscarried without realising it) have Y chromosomes.

98% of men have some cells that don't have Y chromosomes, generally, they are an exact match for their mother's cells. It is also possible that they got cells from older brothers / sisters including ones that didn't make it to birth via that route.

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