Group items tagged Genetics - Indie Nation

shared by John Lemke on 06 Mar 14 - No Cached

Scientists have successfully modified the white blood cells of 12 patients living with HIV, making their cells resistant to the retrovirus and improving the study participants' overall ability to fight off infection. The researchers achieved this result through a gene editing technique, described today in
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Unlike the child who went into HIV remission a year ago, the patients in this study continue to test positive for HIV. But the results of this Phase I clinical trial still represent a promising debut for HIV treatments involving tailored gene therapy, as the white blood cells persisted for nearly a year after transfusion.
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shared by John Lemke on 08 May 14 - No Cached

genetic code comprises six letters, instead of four
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the bacteria appear to be reproducing normally and passing on the new X-Y pair to their offspring.
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t probably wouldn't survive for very long, Romesberg said, because it needs to feed on synthetic molecules to replicate — molecules that only the scientists can supply.
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shared by John Lemke on 13 Jun 13 - No Cached

shared by John Lemke on 13 Jun 13 - No Cached

shared by John Lemke on 09 May 14 - No Cached

Using genetically modified E. coli to generate biofuel isn’t new. U.K. scientists said in April they have developed a process under which the bacterium turns biomass into an oil that is almost identical to conventional diesel–a development that followed similar research by U.S. biotechnology firm LS9 in 2010. But the breakthrough this time is important because the reprogrammed E. coli can produce gasoline, a high-premium oil product that’s more expensive than diesel if the biofuel becomes commercially viable, according to Prof. Lee Sang-yup at the Korea Advanced Institute of Science and Technology. His team’s study was published in the international science journal Nature on Monday.
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The significance of this breakthrough is that you don’t have to go through another process to crack the oil created by E. coli to produce gasoline. We have succeeded in converting glucose or waste biomass directly into gasoline,
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only a few drops of the fuel per hour—making just 580 milligrams of gasoline from one liter of glucose culture.
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shared by John Lemke on 04 Sep 14 - No Cached

The authors of the article note several similarities with the bizarre and enigmatic soft-bodied life forms that lived between 635 and 540 million years ago - the span of Earth history known as the Ediacaran Period.
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The authors of the paper recognise two new species of mushroom-shaped animal: Dendrogramma enigmatica and Dendrogramma discoides.
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The new organisms are multicellular but mostly non-symmetrical, with a dense layer of gelatinous material between the outer skin cell and inner stomach cell layers. The researchers did find some similarities to other animal groupings, such as the Cnidaria - the phylum that comprises corals and jellyfish - and the Ctenophora, which includes the marine organisms known as comb jellies. But the new organisms did not fulfil all the criteria required for inclusion in either of those categories.
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...1 more annotation...
One way to resolve the question surrounding Dendrogramma's affinities would be to examine its DNA, but new specimens will need to be found. The original samples were first preserved in formaldehyde and later transferred to 80% alcohol, a mode of treatment that prevents analysis of genetic material.
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