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Illegal Beings: Human Clones
Re: cloning/stem cell manipulation, what if? something to think about!
libfemme ( 04/14/2004, 10:36:18 )I'm afraid I'm too conventional for your thesis. I follow along with the mainstream of biologists who see a much better documented evolutionary path from asexual one cell, to sexual multicellular organism, to animals, to mammal,and then to man.I can't see a reason why humanoids would have descended from sexual primates only to lose that sexuality spontaneously. Evolution is additive, rarely subtractively. I have futher trouble with why humanoids would then suddenly invent sexual reproduction again in time for modern life. Occam's Razor:The least convoluted explanation is more likely one. It's more straight forward to believe that we have our current sexual nature because we inherited from our primate and other earlier mammal forefathers, and the fossil record is consistent with that.The reason modern humans reproduce sexually is because they are mammals. Mammals reproduce sexually because they are diploid. For mammals gender is determined genetically, by presense of one or the other of two sex chromsomes, X or Y. There are other animals that reproduce asexually, that is all the members of that particular species are born female, but they exist primarily among animals that diverged from us on the evolutionary path at least 200 million years ago, classes of animals such as reptiles, insects or the invertebrates. By the time you get to mammals and the primate path, sexual reproduction, sexual characteristics, sexual behaviors, child/mother bonding, and instinctual mothering behaviors are pretty much set into the genomes.The only asexual reproduction going on in humans has been in their somatic cells, not their germ lines.
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