Tag: "genetic" at biology news
'Fossil genes' reveal how life sheds form and function
...lize galactose, the Wisconsin scientists found the genetic
pathway almost completely absent from all three, with only a single remaining gene marking the pathway like a faded signpost. "Evolution repeats itself," Carroll says. "What we see is that three or four times, these genes have been junked in differen...
Scientists decipher genetic code of biothreat pathogen
...mptoms of glanders, scientists have deciphered the genetic
code of the ancient pathogen that causes the horse disease: Burkholderia mallei. The study found that B. mallei, a highly evolved pathogen that has been deployed in the past as a biological weapon, has an extremely regulated set of virulence genes an...
Research suggests new avenue for stopping, preventing colon cancer
...when the drug was given to a strain of mice with a genetic
mutation that makes them susceptible to developing pre-cancerous intestinal polyps, both the number and size of polyps increased significantly, DuBois and his colleagues reported last February in Nature Medicine. The same mutation is found in 80 perc...
Chemical genetics identifies SARS inhibitors
...m the University of Hong Kong conducted a chemical genetic
screen to isolate compounds with anti-SARS-CoV activity. The group screened an initial library of 50,240 compounds and found that 104 were potent inhibitors of the virus; of these, two targeted the virus protease specifically, seven targeted the heli...
Genes expose secrets of sex on the side
...sed on the proof in their genes. By using those genetic
smoking guns, researchers at the University of Ari...dwide, the DNA from the Y chromosome has much less genetic
variability than does mitochondrial DNA. "We wanted to know what shapes the patterns of Y-c...
Brown ecologist garners major National Science Foundation grant
...g favorable conditions. They will also examine how genetic
variation in response to these signals is shaped b...ir surroundings. Put another way, how does natural genetic
variation allow one species to thrive in so many places? The five-year, $5-million grant is part of ...
22nd amino acid synthesized and added to genetic code of e. coli bacteria
...ncorporated into proteins inside living cells. The genetic
instructions to put pyrrolysine into proteins foll...ds uses a specialized translator protein to decode genetic
information as that amino acid. But selenocysteine lacked its own translator protein and is put into...
Genetic modification of linseed produces healthier omega 3 and 6 fatty acids
...n oilseed crop, and is an excellent example of how genetic
engineering of agronomically important species can... U.S. This research is an excellent example of how genetic
engineering of agronomically important species can provide real benefits to human health and nutriti...
K-State, other universities to study how climate affects plant evolution
...lants respond to environmental changes and how the genetic
pathways underlying their responses evolve in diff...udy Roe. Roe and other researchers will study the genetic
processes that control flowering time under different weather conditions for the Arabidopsis thalian...
Information system to help scientists analyze mechanisms of social behavior
.... "Worries abound over the ethical implications of genetic
determinism," he said. "The goal of BeeSpace is to help forge a deeper understanding of the relationship between genes and behavior that transcends nature-nurture. This project will use genomic biology to demonstrate that what matters for social be...
NSF announces six 'FIBR' awards to tackle some of biology's most challenging questions
...w do organisms adapt to newly acquired genes? What genetic
forces draw members of an ecological community tog... to unravel "ecological genomics," identifying the genetic
linkages that draw species together into complex communities and whole ecosystems. Genes and envi...
JCI table of contents September 15, 2004
...o pinpoint mutations in diseases that have complex genetic
backgrounds. An accompanying commentary by Eric Sc...as many as 1 in 3,500 individuals. The underlying genetic
basis and the clinical symptoms vary, but generally the result is profound vision loss, most often c...
Human chromosome 5 final sequence analysis released to public
... after publicly revealing the official draft human genetic
sequence, researchers have reached the halfway point in dotting the i's and crossing the t's of the genetic
sentences describing how to build a human. The newly finalized chromosome 5 is the 12th chromosome p...
Venn diagram tactics to vet complex disease
...o pinpoint mutations in diseases that have complex genetic
European common frog found to use novel mating strategy
...their turn at fertilization. According to Vieites, genetic
analysis of the eggs in a single clutch shows fertilization by as many as four separate males, including the male that actually had embraced the female. "This is the first example of such a complex mating behavior in amphibians undergoing external fe...
A liking for sweets, combined with novelty seeking, may predict alcoholism
...able response to sweet taste (sweet liking) with a genetic
vulnerability to alcoholism among children of alco...rable response to sweet taste (sweet liking) and a genetic
vulnerability to alcoholism among children of alcoholic fathers. Sweet liking, however, is insuffic...
Byproduct of water-disinfection process found to be highly toxic
...e alternatives, said Michael J. Plewa [PLEV-uh], a genetic
toxicologist in the department of crop sciences. "This research says that when you go to alternatives, you may be opening a Pandora's box of new DBPs, and these unregulated DBPs may be much more toxic, by orders of magnitude, than the regulated ones...
First glimpse of DNA binding to viral enzyme
...se uses the DNA as a guide wire, sliding along the genetic
material to remove the internal "scaffolding" proteins, all located near the DNA. The team used a technique called synchrotron footprinting, which was pioneered by paper co-author Mark Chance and his colleagues at the Albert Einstein College of ...
Genetic analysis rewrites salamander's evolutionary history
...ganisms 270 years ago - are basically correct. New genetic
studies, the thinking goes, will only prune the tw...dy of the largest family of salamanders produced a genetic
family tree totally inconsistent with the accepted classification, which is based primarily on physi...
Can an old gene learn new tricks?
...es, is thought to have arisen through advantageous genetic
changes that occurred during the course of evoluti...an systems can result from primitive developmental genetic
programs that are, in a sense, recycled for entirely new structures. According to the expression p...
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