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Abstract From: Cloning : Where Do We Draw The Line?
Beginning of essay
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The first attempt in cloning was conducted in 1952 on a group of frogs.
The experiment was a partial success. The frog cells were cloned into other
living frogs however, only one in every thousand developed normally , all of
which were sterile. The rest of the frogs that survived grew to abnorma ....
Middle of essay
....rson. They did however,
split the embryos into separate cells, as a result creating separate and
identical clones. They began experimenting on seventeen of the defective
embryos and "when one of those single-celled embryos divided into two cell…the
scientists quickly separated the cells, creating two different embryos with the
same genetic information" (Elmer-Dewitt 38). The cells are coated with a
protective covering "called a zona pellucida, that is essential to development"
(Elmer-Dewitt .... |
| Number of words: 771 |
Approximate pages: 3 |
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