The first public release of plant gene chip information is being launched at the Society for Experimental Biology conference in Swansea on Friday 12th April. Scientists from the Nottingham Arabidopsis Stock Centre (NASC), part of a multi-million pound resource network, will announce a newly accessible plant gene chip database which is available through the internet.
Unlike in GATTACA, where a drop of Ethan Hawke`s blood or an eyelash could tell you what genes he had, gene chips can tell you much more; not only which genes are there, but also how active they are, and therefore - what they may be doing.
Gene chips are produced in a similar manner to silicon chips, but instead of wires and transistors, the chips are covered with nucleotides and `virtual genes`. These chips allow scientists to take a small sample of an organism and then electronically show the simultaneous state of thousands of the RNA products from genes in that organism. This potentially gives you a `barcode` for the plant or animal and can be used in applications stretching from basic research to the real-time effects of GM manipulation, providing an exhaustive `contents` list for a transgenic organism. The `barcode` allow you to take a snapshot of the state of an organism telling you, for example, which genes are switched on in response to different exposures of light in a flower. The data is generated using Affymetrix gene chip technology and has been one of the hottest applications in the biological community for the last few years.
Jenny Gimpel | alphagalileo
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How do some neutron stars become the strongest magnets in the Universe? A German-British team of astrophysicists has found a possible answer to the question of how these so-called magnetars form. Researchers from Heidelberg, Garching, and Oxford used large computer simulations to demonstrate how the merger of two stars creates strong magnetic fields. If such stars explode in supernovae, magnetars could result.
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