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Written by Edina Nasseri
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Thursday, 06 November 2008 |
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Think of all the extinct animals that you can think of. Now imagine them walking about in the wild side by side with human beings. Isn’t that a thought?
Well, the dream could now become reality as researchers from the Institute of Physical and Chemical Research (RIKEN) in Japan have successfully managed to clone a frozen lab mouse what had been dead for over 16 years. Although its cells suffered immense damage from being frozen in temperatures below -20 degrees Celsius, researchers claim that they were able to extract nuclei from ruptured brain cells and used the traditional nuclear transfer technique to insert the cellular material (from the frozen mouse) into the eggs of healthy mice. From this came the embryonic clones which were then used to produce 4 cloned mice. Finally when the clones reached maturity, they were allowed to mate with other mice and produced healthy offspring.
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