Saturday, 10 December 2011

Japanese scientists advance to clone extinct Mammoths

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Warmer temperatures tied to global warming have thawed ice in eastern Russia that is almost always permanently frozen. As a result, researchers have found a fair number of well-preserved frozen mammoths there, including the one that yielded the bone marrow.As a result, within five years, a woolly mammoth will likely be cloned, according to scientists who have just recovered well-preserved bone marrow in a mammoth thigh bone. Japan's Kyodo News first reported the find.
Russian scientists Grigoriev and his team, along with colleagues from Japan's Kinki University, have announced that they will launch a joint research project next year aimed at re-creating the enormous mammal, which went extinct around 10,000 years ago. Semyon Grigoriev, acting director of the Sakha Republic's mammoth museum, and colleagues are now analyzing the marrow, which they extracted from the mammoth's femur, found in Siberian permafrost soil.
Mammoths used to be a common sight on the landscape of North America and Eurasia. The key to cloning the woolly mammoth is to replace the nuclei of egg cells from an elephant with those extracted from the mammoth's bone marrow cells. By doing this, according to the researchers, there is a great chance of creating embryos with mammoth DNA. Scientists have been on the search for such original nuclei since the late 1990s.
Now it sounds like the missing genes may have been found. In an odd twist, global warming may be responsible for the breakthrough. Is it such a good idea, however, to clone animals that have long been extinct? For a while there's been some discussion of a real-life Jurassic Park setup containing such animals. Introducing these beasts into existing ecosystems could be like bringing in a potentially invasive species that would try to fill some space presently held by other animal(s). Even if the cloned animals were contained in special parks, there could still be a risk of spreading. So if the woolly mammoth is successfully cloned sooner rather than later, we'd probably be left with more questions and controversy than answers, at least in the short term.-By Ndidi Esinulo

1 comment:

  1. Science and technology is really destroying this world? what is good in cloning of animals