Without DNA recombination and mutation, humans would all be the same, says the University of Leicester's Alec Jeffreys. Jeffreys — who invented DNA fingerprinting in the 1980s — and his team have recently discovered the gene they think is responsible for DNA recombination, writes the New Scientist's Andy Coghlan. The gene, called PR domain-containing 9, makes an enzyme that locks onto DNA and recombines it when sperm eggs develop from germ cells, Coghlan says.

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NPR reports that with medical data being big business, some companies want to get patients involved.

The Asbury Park Press reports on the startup Genomic Prediction's test to determine an embryo's risk of disease.

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