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Analysis reveals extent of DNA repair army
05-24-2007 · EurekAlert!A new database developed by a team of researchers from the Howard Hughes Medical Institute is providing the first detailed portrait of the army of more than 700 proteins that helps maintain DNA's integrity.
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Keywords: analysis, reveals, extent, dna, repair, army, analysi, reveal
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- DNA analysis reveals rapid population shift among Pleistocene cave bears
02-19-2007 · EurekAlert!
Studying DNA obtained from teeth of ancient cave bears, researchers have been able to identify a shift in a particular population of the bears inhabiting a European valley in the late Pleistocene era. The findings illustrate the ability of DNA sequence analysis to reveal aspects of animal population dynamics in the distant past and potentially illuminate the influence of human migrations in animal population changes.
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- DNA analysis reveals extinct type of wolf
11-11-2006 · Science News Online
New genetic analyses of the remains of gray wolves found in Alaska indicate that a distinct subpopulation of that species disappeared at the end of the last ice age, possibly because of its dietary habits.
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- Traveling tubers
02-02-2008 · Science News Online
Potato varieties from Chile arrived in Europe several years before the blights of the mid-1800s, a new analysis of DNA from old plant collections reveals.
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- Animal Origins: Genome reveals early complexity
02-16-2008 · Science News Online
Analysis of DNA from a choanoflagellate, the closest known living nonanimal relative of animals, allows scientists to infer the genetic starter kit possessed by the first animal.
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- Enzyme alerts cell's powerful army to repair DNA damage
09-05-2007 · EurekAlert!
Each day cells detect and repair daily assaults to our DNA. University of Michigan researchers have discovered that a well-known enzyme scans genes for damage and alerts the major cancer suppressor protein p53. The finding has implications for treating cancer and neurological diseases.
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- Analysis of rhesus monkey genome uncovers genetic differences with humans, chimps
04-12-2007 · EurekAlert!
An international consortium of researchers has published the genome sequence of the rhesus macaque monkey and aligned it with the chimpanzee and human genomes. Published April 13 in a special section of the journal Science, the analysis reveals that the three primate species share about 93 percent of their DNA, yet have some significant differences among their genes.
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- DNA analysis shows true dispersal of protozoa
09-12-2007 · EurekAlert!
In contrast to previous findings, it seems that the global distribution of macro- and microorganisms might be similar. A study in the online open access journal, BMC Evolutionary Biology, shows that some protozoa are globally dispersed, while others are geographically restricted -- by looking at a new fast-evolving DNA marker. The study also reveals that the biodiversity of protozoa may be much higher than previously realized.
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- Scientists reveal structure of gateways to gene control
03-28-2007 · EurekAlert!
The first complete high-resolution map of structures that control how genes are packaged and regulated throughout an entire genome has been compiled by Penn State scientists. The research suggests how certain nucleosomes control whether a gene's function can be turned on. The study reveals an intimate relationship between the architecture of nucleosomes and the underlying DNA sequences they regulate, including a critical gateway that must be unlocked before a gene can be transcribed.
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- Scientists complete DNA sequencing and analysis of multiple fruit fly genomes
11-07-2007 · EurekAlert!
In one of the first large-scale comparisons of multiple animal genomes, scientists have analyzed the genomes of 12 species of the fruit fly Drosophila, 10 of which were sequenced for the first time, to reveal insights on the evolution of genes and genomes and to discern the functional elements encoded in animal DNA.
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- Tobacco companies admit their products cause cancer, but not in those who sue them
11-27-2006 · EurekAlert!
Despite publicly admitting, to varying degrees, that cigarette smoking causes cancer, the industry has consistently dismissed these claims for people who have sued them, reveals an analysis of recent lawsuits, published in a supplement to Tobacco Control.The authors looked at the opening and closing statements of the defense, witness statements and depositions for 34 personal-injury claims brought against major tobacco manufacturers between 1986 and 2003 in the US.
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