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New behavior may use old genes
10-25-2006 · EurekAlert!Though you may not be able to teach an old dog new tricks, ASU researchers have found that evolution may have taught old genes new tricks in the development of social behavior in honeybees. The genetic basis of social behavior is being deciphered through the efforts of ASU researchers and their work with the honeybee, Apis mellifera.
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Keywords: behavior, old, genes, gene
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08-24-2007 · EurekAlert!
People who live to 100 or more are known to have just as many -- and sometimes even more -- harmful gene variants compared with younger people. Now, scientists at the Albert Einstein College of Medicine of Yeshiva University have discovered the secret behind this paradox: favorable "longevity" genes that protect very old people from the bad genes' harmful effects. The novel method used by the researchers could lead to new drugs to protect against age-related diseases.
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Dr. Carmela Abraham, a professor of biochemistry and medicine at Boston University School of Medicine, reports this week in the Proceedings of the National Academy of Sciences new findings on Klotho, an antiaging gene that is associated with life span extension in rodents and humans. Dr. Abraham's interest in Klotho stems from her studies comparing the expression of genes in young and old brains.
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Scientists at the University of Rochester and the J. Craig Venter Institute have discovered a copy of the entire genome of a bacterial parasite residing inside the genome of its host species.The finding, reported in today's Science, suggests that lateral gene transfer -- the movement of genes between unrelated species -- may happen much more frequently between bacteria and multicellular organisms than scientists previously believed, posing dramatic implications for evolution.
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