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If you want mitotic chromosomes then you want to look at apical meristems — probably the primary root from germinating seedlings will be easiest. Apical meristems are at the growing tips of roots (and shoots) and contain regions of rapidly dividing cells. Since you can only see chromosomes as separate bodies when they are condensed for cell division this ...


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Ultraviolet radiation can induce both DNA crosslinking and double strand breaks. Here is a paper reporting sequnce determinants of UV-induced intra-strand crosslinks: https://www.ncbi.nlm.nih.gov/pubmed/11342214 Here is a paper where the authors propose that UV-induced double-strand breaks are a consequence of repair of oxidative lesions, rather than a ...


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I encountered the following paragraph in the textbook Life: The Science of Biology: Some chemicals add groups to the bases. For instance, benzopyrene, a component of cigarette smoke, adds a large chemical group to guanine, making it unavailable for base pairing. When DNA polymerase reaches such a modified guanine, it inserts any one of the four ...


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It seems very feasible to synthesize human DNA (please inform my ignorance, if I'm wrong. lol.) and it looks very promising after reading this: https://www.wired.com/story/live-forever-synthetic-human-genome/. It is certainly possible to synthesize human DNA, but it's another thing to create a functional chromosome. In fact, in the article you link to,...


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