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Cloning is the production of duplicate copies of genetic materials cells or entire multi-cellular living materials For years cloning had only been a fantasy but with new scientific research cloning can be very successful Because there are so many advantages in areas like agriculture medicine and biological research in producing genetically identical organisms artificial cloning has become the focus of attention with scientists todayAt last there is hope of saving endangered species We might be able to witness the cloning of now nearly extinct condors tigers rhinoceroses and so many other living marvels That was a quote from Jose F Jaramillo a man who has written many essays on the hope of cloning endangered species There are so many animals that are nearly extinct which could benefit greatly by cloning Cloning endangered species would take a lot of time and it would be and extremely difficult process Just look at the sheep that got cloned Dolly It took 276 tries to clone Dolly So at the moment the success rate of cloning endangered animals is very low But it is very possible to doThe history of cloning goes back to 1938 when a German scientist suggested removing the nucleus which contains the genes from an egg cell and replacing it with the nucleus from another cell but back then the tools and technology to do such a task didnt existThen in 1952 scientists took the nucleus out of the cell of a frog embryo and put it into a denucleated frog cell but the egg didnt develop In 1970 another scientist tried to do the same thing But this time the eggs hatched and went into tadpole mode But the tadpoles always died Finally in 1984 scientists reported the successful cloning of a sheep Cells from an early post-fertilization stage of development were taken out and put into a denucleated egg of a second sheep The second sheep gave birth to a healthy lamb with
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