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Cloning Of Animals - School Essays

Cloning Of Animals


On Sunday, February 23, 1997, Scottish researchers broke one of nature's
greatest laws by cloning a lamb from a single cell of an adult ewe. This
breakthrough opens the door to the possibility for the cloning of other mammals
including humans.
This remarkable achievement is being looked at as a great advancement in
animal agriculture. But this achievement could lead to ethical questions of
standard.
Researchers lead by Ian Wilmut of the Roslin Institute in Midlothian,
Scotland, showed that a fully differentiated cell from the mammary tissue of an
ewe could be manipulated in such a way as to produce a genetically identical
copy of the animal that the DNA was acquired.
Scientist long ...

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was perfected and accomplished. Now this
accomplishment has made it possible for the cloning of almost any mammal,
including humans.
To the average person, exactly how the technique works is unclear.
Scientist predicted that by making cells dormant and bringing them close to
death, something happens to break the chemical locks (barriers) that keep most
of the genes inactive. The mammary cell is inserted into an unfertilized sheep
egg cell that has already had all of its own genetic material removed. By
fusing the cells together tricks the egg into thinking that it has become
fertilized.
After being fused together, researchers believe that the chemical
machinery inside the egg cell goes to work to reprogram the mammary cell genes
into starting over again, as if they were brought together as sperm and egg.
The cell divides, produces an embryo, fetus and a newborn that is identical to
the animal from which it was cloned.
Although the United States government prohibits government ...

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PAPER DETAILS
Added: 10/8/2006 10:14:19 PM
Category: Science & Nature
Type: Premium Paper
Words: 508
Pages: 2

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