Firm nears completion of human genome.Forget about those Internet companies. Instead, take a look at the skyrocketing stock price of Celera Genomics, a biotech firm in Rockville, Md., that is racing to sequence the human genome The human genome is the genome of Homo sapiens, which is composed of 24 distinct pairs of chromosomes (22 autosomal + X + Y) with a total of approximately 3 billion DNA base pairs containing an estimated 20,000–25,000 genes. a year or two before the government-funded international effort does (SN: 5/23/98, p. 334). Celera's stock received its latest boost Jan. 10 when the company announced that it has sequenced 90 percent of the human genome and claimed it has found about 97 percent of all human genes. Since Celera didn't release its data publicly and has yet to submit them to a scientific journal, those impressive claims remain difficult to verify. J. Craig Venter To comply with Wikipedia's lead section guidelines, it should be expanded. , scientific founder of Celera, acknowledges that the firm has assembled the complete DNA sequence DNA sequence Genetics The precise order of bases–A,T,G,C–in a segment of DNA, gene, chromosome, or an entire genome. See Base pair, Base sequence analysis, Chromosome, Gene, Genome. of only a small number of genes. Celera's controversial genome strategy quickly produces sequences of gene fragments, but scientists must then use overlapping sequences to piece together the genome. Celera will continue sequencing the bits of human DNA DNA: see nucleic acid. DNA or deoxyribonucleic acid One of two types of nucleic acid (the other is RNA); a complex organic compound found in all living cells and many viruses. It is the chemical substance of genes. for a few months before the complex assembly process begins in full. "We will definitely be able to finish the genome this year," asserts Venter venter /ven·ter/ (ven´ter) pl. ven´tres [L.] 1. a fleshy contractile part of a muscle. 2. abdomen. 3. a hollowed part or cavity. ven·ter n. . |
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