2008年9月5日星期五
human genome project
The Human Genome Project: [Edit this paragraph] The Human Genome Project (human genome project, HGP) by the United States in 1985, scientists first proposed, in 1990 the formal launch. United States, Britain, the French Republic, Federal Republic of Germany, Japan and Chinese scientists involved in the common value of 3 billion U.S. dollars of the human genome project. This programme aims to more than 3 billion base pairs that constitute the human genome sequencing accuracy, found that all the human genes and gain a clear understanding of its position on the chromosome, decipher all the human genetic information. And the Manhattan atomic bomb plans and the Apollo moon-landing plan and called the three major scientific project. June 26, 2000, to participate in the human genome project of the United States, Britain, the French Republic, Federal Republic of Germany, Japan and China's scientists announced the six countries, the draft of human genome mapping has been completed. The final map calls for sequencing the use of cloning to faithfully represent autosomal genome structure, sequence error rate of less than 10,000. 95 percent of the region was often chromatin sequence, each Gap is less than 150 kb. Completed plans will be completed in 2003, two years earlier than expected. U.S. and British scientists on May 18, 2006 in the United Kingdom "Nature" magazine published on the Internet version of the last of the human chromosome - 1 gene on chromosome sequencing. In all 22 pairs of human chromosomes in the regular session, 1 gene on chromosome contains the largest number to 3,141, is twice the average level, a total of more than 223 million base pairs right, also cracked the biggest difficulty. A 150 British and American scientists took a team of 10, before completing the sequencing of chromosome 1 work. Scientists more than once declared that the human genome project completed, but not all were introduced this, this time fixing the Life "book" more precise, covering the human genome 99.99 percent. Interpretation of the human genetic code, "a book of life" complete declaration, which lasted 16 of the Human Genome Project finished writing the last chapter.
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