15 Oct 2004 20:20 AR AR230-GE38-20.tex AR230-GE38-20.sgm LaTeX2e(2002/01/18) P1: IKH 10.1146/annurev.genet.37.110801.143214 Annu. Rev. Genet. 2004. 38:645–79 doi: 10.1146/annurev.genet.37.110801.143214…
