Bio 321 F13 lecture 1 v2

Basic ecologicalevolu6onary genomics and metagenomics

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Unformatted text preview: nd except it has U instead of T let’s review transcrip6on with 2 videos hYp://www.youtube.com/watch? v=5Tv0HPUH4_k •  here is what it looks like in real 6me •  hYp://www.youtube.com/watch? v=5MfSYnItYvg let’s review transla6on with a video •  hYp://www.youtube.com/watch? v=1PSwhTGFMxs http://en.wikipedia.org/wiki/DNA it pays to go through this •  DNA = 5' ATG 3' •  3' TAC 5' •  mRNA = a complement of the 3' - 5' DNA strand •  mRNA = 5' AUG 3' •  an6codon of methionine transfer RNA = 3' UAC 5' •  methionine transfer RNA brings the methionine amino acid to the ribosome and the polypep6de strand is ini6ated (or elongated if this is in the middle of the polypep6de sequence) You need to know how to use this the phenotype is hierarchical high fitness of the organism structure or behavior of the organism complexity metabolism, development of the organism activity level of the pathway containing the enzyme activity level of the enzyme low DNA/protein sequence of an enzyme here’s an example of an enzyme pathway •  hYp://www.youtube.com/watch? v=c2uiPUhIx74 the phenotype is hierarchical fitness of the organism structure or behavior of the organism increasing dependence on other genes metabolism, development of the organism activity level of the pathway containing the enzyme activity level of the enzyme DNA/protein sequence of an enzyme the phenotype is hierarchical fitness of the organism structure or behavior of the organism increasing dependence on the abiotic and biotic environment metabolism, development of the organism activity level of the pathway containing the enzyme activity level of the enzyme DNA/protein sequence of an enzyme Mendelian Genetics Mendel’s experiments Mendel’s postulates (or laws) Gregor Mendel (1822- 1884) Pea plant Pisum sa.vum St. Thomas Monastery in Brno, Czech Republic Mendel conducted crosses with plants differing in one of seven distinct traits Ar6ficial pollina6on of plants •  Cross pollina6on of coYon •  hYp://www.youtube.com/watch? v=BXjwz_0eeVM –  Mendel did this in the first genera6on with peas •  Self pollina6on of peas •  hYp://www.youtube.com/watch? v=kz0RsylZWz4 –  Mendel did this in the 2nd genera6on (with the F1 plants) (he might not have needed to do anything)...
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This note was uploaded on 10/01/2013 for the course BIO 321 taught by Professor John during the Spring '12 term at SUNY Stony Brook.

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