Posted by: crisdiaz24 | May 2, 2009

kEY TO BACK FROM THE DEAD

BACK FROM THE DEAD? SCIENTISTS CLOSER TO CLONING TASMANIAN TIGER

Around the world, hundreds if not thousands of species of animals ARE THREATENED (threaten) with extinction… but the latest scientific developments could mean that one day even extinct animals WILL BE BROUGHT BACK (bring back) to life using DNA technology. The last-known Tasmanian tiger died in a zoo in Hobart, Australia, in 1936. Fifty years later, the species WAS DECLARED (declare) extinct. But in 1999, a research project into DNA cloning WAS SET UP (set up) at the Australian Museum in Sydney, and now, after 10 years work, high quality DNA HAS BEEN EXTRACTED (extract) from a baby tiger which HAS BEEN PRESERVED (preserve) in a jar of alcohol since 1866. According to scientists, there is now a chance of the Tasmanian tiger BEING RESURRECTED (resurrect) using techniques similar to those which WERE USED (use) to create cloned sheep in the 1990s. If undamaged DNA WERE / WAS RECOVERED (recover), it could BE INSERTED (insert) into the empty egg of a related living species, such as a Tasmanian Devil. However, the technology for the final stage of cloning – where the Tasmanian Tiger’s DNA IS PLACED (place) into a Tasmanian Devil host which HAS BEEN STRIPPED (strip) of its own genetic material – is still BEING / TO BE DEVELOPED (develop). “It’s a very significant breakthrough,” said Professor Michael Archer, Professor of Zoology at the University of New South Wales. “Although there’s still a lot of work TO BE DONE (do), there’s now a real possibility of Tasmanian tigers BEING RELEASED (release) into the wild within the next decade.”

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