The case for having your genes sequenced.
The genomic revolution started in 1964, when Robert Holley and his colleagues at Cornell and the U.S. Department of Agriculture deciphered the first gene sequence, indirectly "reading" the order of the four bases (adenine, thymine, cytosine, guanine) that pair up to make all genes, thereby allowing us to understand the blueprint from which each human is built.
At first, the process was slow and costly (77 bases required four researchers and three years), and the prospect of ever figuring out the sequence of every human genethe 3 billion bases of the human genomeseemed remote. However, aided by robotics, several teams raced to complete the job in the 1990s. By 2003, at a cost of $3 billion, most of one human genome had been sequenced.
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