杏吧原创

Working drafts of the sequences of human chromosomes 5, 16 and 19 have been
completed by US Department of Energy labs鈥攖he next major milestone since
the completion of chromosome 22
(New 杏吧原创, 4 December 1999, p 5).
The three chromosomes represent 11 per cent of our genome and contain ten to
fifteen thousand genes. Although 10 per cent of each sequence remains unknown,
the drafts already contain almost everything of value that will ever come out,
says Elbert Branscomb, head of the DOE鈥檚 Human Genome Program.