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Re: Could someone help settle debate?
SC ( 01/06/2004, 05:12:17 )There is a basic description of somatic cell nuclear transfer at http://www.lef.org/featured-articles/apr2000_clon_01.html, which should allow you to determine how correct each of your answers is.Cloning should really be used to refer to any process that makes a duplicate of an existing cell. What people usually think of when they talk about cloning is a process called somatic cell nuclear transfer. According to the link above, this involves taking the nucleus (which I presume is not the same as just the chromosomes) out of an egg and putting another entire cell (not just that cell's nucleus) into the egg. I have read elsewhere that some mitochondrial DNA from the empty egg is left behind, so there is a very small remaining amount of genetic material which does not come from the donor cell.Cloning by somatic cell nuclear transfer doesn't have to be done using the blood cell of a donor; other cells can be used as well. It has also been done recently without using an electrical spark (there is a link to the Wired magazine article a little down the page which describes using chemical triggers instead).
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