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pacome delva

Synthetic Genome Brings New Life to Bacterium - 0 views

  • For 15 years, J. Craig Venter has chased a dream: to build a genome from scratch and use it to make synthetic life. Now, he and his team at the J. Craig Venter Institute (JCVI) in Rockville, Maryland, and San Diego, California, say they have realized that dream.
  • "One thing is sure," Boeke says. "Interesting creatures will be bubbling out of the Venter Institute's labs."
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    wow, a big step in genomics...!
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    But isn't it just yet another word abuse? From what I understand, they just synthesised a genome identical to the one of an existing bacteria... while undoubtedly nice work, this is *very* far from "creating life from scratch"... The fact that you are able to copy something, doesn't mean you understand how it works...
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    well of course we are far from engineering specific functions, and this is just a copy of a function that already existed. However it is quite impressive and the first time it is done. And the challenge here is not really to "copy" the ADN, but the fact that it works... in other words it is not because you copy the ADN identically that the phenotype (traduction of the ADN) will be the same, which is the case in this experiment.
jaihobah

The Genome Project-Write | Science - 2 views

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    These people want to construct a synthetic human genome
LeopoldS

The bonobo genome compared with the chimpanzee and human genomes : Nature : Nature Publ... - 1 views

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    Look at this! Seems that we are as close to the bonobos as we are to the chimpanzees If only we resolved more to their ways of getting rid of stress (sex) more than using the chimpanzees' (aggression)...
ESA ACT

Experiments Confirm the Influence of Genome Long-Range Correlations on Nucleosome Posit... - 0 views

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    From the statistical analysis of nucleosome positioning data for chromosome III of S. cerevisiae, we demonstrate that long-range correlations (LRC) in the genomic sequence strongly influence the organization of nucleosomes.
jcunha

CRISPR/Cas9 and Targeted Genome Editing: A New Era in Molecular Biology | NEB - 1 views

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    An incresingly popular scientific enome re-writting tool. Might prevent future generations from being born with some types of disorders or disabilities! Also, for fun, can be looked at one step closer to having a real wolverine..
LeopoldS

Tests of Parents Are Used to Map Genes of a Fetus - NYTimes.com - 0 views

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    "For the first time, researchers have determined virtually the entire genome of a fetus using only a blood sample from the pregnant woman and a saliva specimen from the father."
Joris _

Let's Reconstitute Humans From Genomes Launched Into Space! and Other Ambitious Proposa... - 0 views

  • Fragmented human genomes could be shipped toward the stars and reconstructed upon their arrival,
  • to spur the monumental technology advances that would be required for such a feat. So the 100-Year Starship is more like a thought experiment than a construction project.
  • “The crux, to us, is inspiration of research — not just in solving the physics-based problems. It’s across all of the domains
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    disruptive!
Dario Izzo

New Enzyme Rewrites the Genome - 2 views

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    Exciting new technique in genetic engineering
johannessimon81

Most of our DNA is useless AND removing it might be feasible! - 1 views

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    Nature: Scientist have found a plant that has a very small genome because it manages to remove junk DNA.
Alexander Wittig

Gene name errors are widespread in the scientific literature - 0 views

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    The spreadsheet software Microsoft Excel, when used with default settings, is known to convert gene names to dates and floating-point numbers. A programmatic scan of leading genomics journals reveals that approximately one-fifth of papers with supplementary Excel gene lists contain erroneous gene name conversions. The reason why you shouldn't use Excel (or Numbers or OpenOffice or ...) without knowing what it actually really does!
fichbio

First evidence that sperm epigenetics affect the next generation - 0 views

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    A frog study provides the strongest evidence yet that a father's lifestyle may affect the next generation, via chemical tags that change gene activity SPERM pass on more than just their DNA. Chemical switches attached to the genomes of sperm - known as epigenetic tags - have been shown to alter the next generation for the first time.
LeopoldS

File-Sharing Church Weds First Couple | TorrentFreak - 0 views

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    copy paste church marries first couple :-)
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    I just thought: who is the author of my genome? Me? My parents? And if it's my parents, could they try to prevent me from reproducing based on copyright laws?
Tom Gheysens

Mapping the spider genome: Surprising similarities to humans -- ScienceDaily - 1 views

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    Looks like we are all spider men and women :)
LeopoldS

Carrier Testing for Severe Childhood Recessive Diseases by Next-Generation Sequencing -... - 3 views

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    scary but very likely development ... blessing in disguise?
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    scary but very likely development ... blessing in disguise?
Joris _

The Origin of Artificial Species: Creating Artificial Personalities - 0 views

  • The first artificial creature to receive the genomic personality is Rity, a dog-like software character that lives in a virtual 3D world in a PC
  • In Rity, internal states such as motivation, homeostasis and emotion change according to the incoming perception
  • The internal control architecture processes incoming sensor information, calculates each value of internal states as its response, and sends the calculated values to the behavior selection module to generate a proper behavior.
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    they have found Christina's dog !!
ESA ACT

Scientists Build First Man-Made Genome; Synthetic Life Comes Next - 0 views

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    next step - just in time for our workshop ... maybe for >Tobias to read before ...
dejanpetkow

Bioengineering to generate healthy skin - 1 views

  • That is, using a small biopsy from a specific patient, they can generate almost the entire cutaneous surface of that individual in the lab.
  • that it is possible to isolate epidermic stem cells from patients with different genetic skin diseases, cultivate them and, using molecular engineering as a first step, incorporate the therapeutic genes into each patient's genome to take the place of the one that the patient does not have or that functions abnormally. Afterwards, in the second step, the stem cells would be assembled into patches ready to be transplanted onto the patients.
  • "What we did in this case -- explains Marcela del Río -- was to transfer a normal SPINK-5 gene to a patient's stem cells and later use these cells to generate skin that could be transplanted to experimental models, such as mice."
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    Nice approach to generate healthy skin and to patch parts or to replace the overall human skin. Next step - clinical studies.
Thijs Versloot

A Groundbreaking Idea About Why Life Exists - 1 views

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    Jeremy England, a 31-year-old assistant professor at the Massachusetts Institute of Technology, has derived a mathematical formula that he believes explains this capacity. The formula, based on established physics, indicates that when a group of atoms is driven by an external source of energy (like the sun or chemical fuel) and surrounded by a heat bath (like the ocean or atmosphere), it will often gradually restructure itself in order to dissipate increasingly more energy. This could mean that under certain conditions, matter inexorably acquires the key physical attribute associated with life. The simulation results made me think of Jojo's attempts to make a self-assembling space structure. Seems he may have been on the right track, just not thinking big enough
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    :-P Thanks Thijs... I do not agree with the premise of the article that a possible correlation of energy dissipation in living systems and their fitness means that one is the cause for the other - it may just be that both go hand-in-hand because of the nature of the world that we live in. Maybe there is such a drive for pre-biotic systems (like crystals and amino acids), but once life as we know it exists (i.e., heredity + mutation) it is hard to see the need for an amendment of Darwin's principles. The following just misses the essence of Darwin: "If England's approach stands up to more testing, it could further liberate biologists from seeking a Darwinian explanation for every adaptation and allow them to think more generally in terms of dissipation-driven organization. They might find, for example, that "the reason that an organism shows characteristic X rather than Y may not be because X is more fit than Y, but because physical constraints make it easier for X to evolve than for Y to evolve." Darwin's principle in its simplest expression just says that if a genome is more effective at reproducing it is more likely to dominate the next generation. The beauty of it is that there is NO need for a steering mechanism (like maximize energy dissipation) any random set of mutations will still lead to an increase of reproductive effectiveness. BTW: what does "better at dissipating energy" even mean? If I run around all the time I will have more babies? Most species that prove to be very successful end up being very good at conserving energy: trees, turtles, worms. Even complexity of an organism is not a recipe for evolutionary success: jellyfish have been successful for hundreds of millions of years while polar bears are seem to be on the way out.
jcunha

Chicken study reveals evolution can happen much faster than thought - 2 views

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    "A new study of chickens overturns the popular assumption that evolution is only visible over long time scales. By studying individual chickens that were part of a long-term pedigree, the scientists led by Professor Greger Larson at Oxford University's Research Laboratory for Archaeology, found two mutations that had occurred in the mitochondrial genomes of the birds in only 50 years."
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