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Tuesday, May 20, 2003

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find related articles. powered by google. BBC Chimps genetically close to humans

"Scientists from the Wayne State University, School of Medicine, Detroit, US, examined key genes in humans and several ape species and found our "life code" to be 99.4% the same as chimps.

They propose moving common chimps and another very closely related ape, bonobos, into the genus, Homo, the taxonomic grouping researchers use to classify people in the animal kingdom."

redux [04.29.03]
find related articles. powered by google. Nature: Science Update Chimps expose humanness

"By studying chimpanzees, scientists are honing their genetic view of humanity, researchers told this week's meeting of the Human Genome Organisation in Cancun, Mexico."

"The data call for some revision of the estimated genetic similarity between us and our closest relatives. Previously, human and chimp genetic sequences were quoted as being nearly 99% identical, with a difference of only a few DNA's letters. In fact, the similarity may be as low as 94-95%, says Todd Taylor of the RIKEN Genomic Sciences Center in Yokohama, Japan.

redux [03.04.03]
find related articles. powered by google. Wired News You Can't Make a Monkey Out of Us

"Chimpanzees seem almost human, and scientists have maintained for decades that chimps are, in fact, 98.5 percent genetically identical to humans.

But the results of a new study call that figure into question, with a finding that there are actually large chunks of the human and chimp genomes that are vastly different."

find related articles. powered by google. Genomeweb How to Compare Us to Our Hairy Cousins? New Papers Provide Techniques

"It involves sampling data from select regions of many different related species, and then comparing them within the context of their phylogenetic relationships. In the research described in the Science paper, Rubin and colleagues sampled 17 primate species closely related to human and spanning 40 million years of evolution -- insufficient time for significant genetic divergence to have taken place.

According to Rubin, phylogenetic shadowing compensates for the failure of traditional comparative genomics techniques, which "invariably miss recent changes in DNA sequence that account for primate-specific biological traits." The approach overcomes the primary challenge of comparing genomes of closely related species: the difficulty in distinguishing functional from nonfunctional sequences."

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Bioinformatics will be at the core of biology in the 21st century. In fields ranging from structural biology to genomics to biomedical imaging, ready access to data and analytical tools are fundamentally changing the way investigators in the life sciences conduct research and approach problems. Complex, computationally intensive biological problems are now being addressed and promise to significantly advance our understanding of biology and medicine. No biological discipline will be unaffected by these technological breakthroughs.


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