Maybe it should be a requirement that to patent a gene that the patented gene be attached to chromosomes or organelles that are only found in the non-motile gamete (e.g. if it exists, something like the Y-chromosome, but only existing in eggs ).
Analysis showed that 27% of British African-Caribbean men have a Y chromosome (passed directly from father to son) that traces back to Europe, not Africa.
Using the second swabs to test for additional markers on the Y (male) chromosome, can help narrow a large pool of close matches - potentially thousands of profiles - to a more manageable number.