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Sentinel166

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  1. Hi. I would like to ask, has there been attempt at erasing imprinting done on a chromosome, for instance by cultivating them in bacteria or a different genetic system, or individual... or merely cells cultural of the same organism ? That way we could get mono-parental disomy to be viable, since the only reason they don't (I think NO such mouse develops, right ?), is imprinting. I am a student, or researcher... whatever that means, interested in consanguinity, its effect, beyond the usual "recessive" mantra. I figured out that the simplest, to reveal every "defect" or considered as such regards to functionality, would first be this: - father gives an abnormal gamete, with both X and Y. Mother gives normal X. Hence no disomy. We cause twins to split early by destroying an X in a blastomeric line, and a Y in the other. The twins are fraternal, yet 97% identical save for a few genes in the Y. Ignoring recessives, what could go wrong ? Then, if we could erase remove imprinting altogether, we do the same with a male embryo, remove an Y in a cell line but instead, clone an X. Then, the F1 product, or rather cells cultures from it, would show all sorts of interesting things, don't you think ? Does that have been studied ? Since we still breed mice the "old" way, I suspect it's not a method to create mutant lines that is currently successful. I wonder if besides recessives, there is an interest in having different alleles. Besides the "natural selection" or "immune system" argument... Could a diploid organism be viable if all genes had working identical alleles ? A mammal ? Thanks for your answers ! Mehdi, 27 years old, graduated in biology (*licence, 3y post Baccalauréat )
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