Biology 1002B Lecture Notes - Lecture 11: Reactive Oxygen Species, Vaucheria, Light-Independent Reactions
19 Oct 2017
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Have the primitive eukaryotic cell, endosymbiosis is where we think chloroplast and mitochondria came from (lots of evidence) Over time chloroplasts and mitochondria (once free living had their own genome), lots of those genes have moved to the nucleus (lgt) Hypothesis #2: has to do with electron transport and reactive oxygen: bacteria have no option no intracellular compartments, electron transport is happening close to where the dna is (not a good thing because et can be. Damaging to the cell (cid:449)ould(cid:374)"t (cid:449)a(cid:374)t (cid:455)our dna to (cid:271)e (cid:449)here ele(cid:272)tro(cid:374) tra(cid:374)sport is taking place: get the dna away from et, because it can be harmful because etcs can generate reactive oxygen. Genes in the nucleus can participate in sexual recombination (if we can get those genes out of the organelles and into the nucleus that confers a tremendous advantage in generating genetic diversity) (the real reason)
