News of the WeekHuman Genome Project

Chromosome 21 Done, Phase Two Begun

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Science  12 May 2000:
Vol. 288, Issue 5468, pp. 939
DOI: 10.1126/science.288.5468.939a

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This week, the international consortium in the race to sequence the human genome made two major announcements: They unveiled the complete sequence of chromosome 21, only the second chromosome to be sequenced--and one intricately involved in Down syndrome. At the same time, they announced that they had finished (almost) "phase one" of the project, the rough draft of the human genome.