Start-ups are working on technology to sequence your genome for $100.

The most recent figures for sequencing a human genome are $60,000 in about six weeks, as reported by Applied Biosystems last month. (That’s down from $3 billion for the Human Genome Project, which was sequenced using traditional methods and finished in 2003, and about $1 million for James Watson’s genome, sequenced using a newer, high-throughput approach and released last year.) But scientists are still racing to develop methods that are fast and cheap enough to allow everyone to get their genomes sequenced, thus truly ushering in the era of personalized medicine.

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