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Essay Galaxy - Cloning 2
Cloning
Of all the terms coined by scientists which have entered popular vocabulary, 'clone' has
become one of the more emotive. Strictly speaking a clone refers to one or more offspring
derived from a single ancestor, whose genetic composition is identical to that of the
ancestor. No sex is involved in the production of clones, and since sex is the normal means
by which new genetic material is introduced during procreation, clones have no choice but
to have the same genes as their single parent. In the same way, a clone of cells refers
simply to the descendants of a single parental cell. As such, adult organisms can be viewed
as clones because all their parts stem from the single cell which is the fertilised egg.
Likewise, many tumours are clones, derived from one aberrant cell which no longer obeys
the normal rules of growth control. The offsprin....
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Number Of Pages: 4 |
Number Of Words: 961 |
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