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Cloning - A Biologist Reports (Paperback, Minnesota Archive Editions Ed.)
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Cloning - A Biologist Reports (Paperback, Minnesota Archive Editions Ed.)
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Cloning was first published in 1985. Minnesota Archive Editions
uses digital technology to make long-unavailable books once again
accessible, and are published unaltered from the original
University of Minnesota Press editions. Cloning has become in
recent years a subject of widespread speculation: the word is a
source of fear and wonder, the concept a jumping-off point for the
fantasies of cartoonists, film producers, and novelists. With this
book, cell biologist Robert Gilmore McKinnell provides the first
clear scientific explanation of the procedure for general readers.
Cloning is best defined as the asexual reproduction of genetic
duplicates. The word clone derives from the Greek word for a twig
or a slip, and the first "cloners" were in fact horticulturalists.
Early attempts to clone animals culminated in 1952 when biologists
reported that they had produced frogs by transplanting genetic
material from an embryonic body cell into an egg from which the
nucleus had been removed. In this account, McKinnell traces the
historical background of cloning and describes in detail the modern
procedure used in the cloning of frogs-the highest animal thus far
cloned. He emphasizes that the purpose of cloning is not to produce
numerous frogs-or people-but rather to serve as a tool in
biological research-to achieve greater understanding of cancer and
aging, immunobiology and the differentiation of cells. McKinnell
also deals with questions about potential mammalian clones and
examines the social, ethical, and biological problems we face in
our considerations about human cloning. He concludes that human
clones are not necessary for research purposes and that the
diversity achieved with sexual reproduction is far more desirable
than the sameness of cloned creatures.
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