Ricki Lewis | May 1, 2000 | 8 min read
Two decades ago, I sat at Herman J. Muller's desk at Indiana University, pushing flies as he once did. Looking back in light of the recent unveiling of the Drosophila melanogaster genome sequence,1 I realize that I was struggling in the Dark Ages of genetics, when we worked by inference rather than scanning databases of A,T, C, and G. If I labored in the Dark Ages, then Thomas Kaufman, my mentor, received his training in the Stone Age; Muller was positively Precambrian. Back in the 1970s,