Biology 1002B Study Guide - Midterm Guide: Polyploid, Chemiosmosis, Lac Operon

26 views27 pages
5 Feb 2016
Department
Professor

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- %!
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'
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-(
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-
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
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!
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-!
!
+ 3
,
-prokaryotes don’t develop complexity because they are always trimming extra
DNA!
-They need to stay as compact as possible because junk/extra DNA is too
energetically costly to keep replicating
-The junk DNA is where all evolution comes from, so bacteria doesn’t have any
and aren’t very complex
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-Their genomes aren't that large but they have a lot of copies of it…therefore their
base genome can't afford to be big/long (only refers to the bacteria without
internal membranes)
-Mutations cannot take hold when theres a lot of copies (refers to prokaryotes that
have a lot of copies)
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-advantage!!!!
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