Biology 2581B Final: Biology 2581

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Tree of life is where genes and genomes are found. The evolution and diversification of life are the result of genetic changes. Three domained tree of life (bacteria (prokaryote), archaea, eukaryote). Eukaryotes have a genome and are not as basic as prokaryotes. A lot of science is trying to look into what luca looked like. We still hold luca in our dna but due to mutations we have become (cid:449)hat (cid:449)e a(cid:396)e. ma(cid:374)(cid:455) (cid:271)elie(cid:448)e that (cid:271)efo(cid:396)e luca it (cid:449)as a(cid:374) (cid:862) na (cid:449)o(cid:396)ld(cid:863) (cid:894)life likel(cid:455) (cid:271)ega(cid:374) as rna). Leca held the key for complex life so it is important for scientists to try and understand it. Viruses a(cid:396)e (cid:374)ot li(cid:448)i(cid:374)g (cid:271)ut the(cid:455) a(cid:396)e (cid:271)iologi(cid:272)al a(cid:374)d ha(cid:448)e a ge(cid:374)o(cid:373)e. vi(cid:396)uses a(cid:396)e ve y old . They believe that viruses stemmed from the rna world due to their rna genome. This means we have had them for a very long time.

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