Biology 1202B Lecture Notes - Lecture 14: Horizontal Gene Transfer, Chloroplast Dna, Gene Expression

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Bio1202b: lecture 14 organelle genes and lateral gene transfer. Only after this point will the organelle delete its own copy. Gene expression is when a gene is in its functional form; not all genes express proteins. Dna needs to be maintained as well. To acquire coordinated function in the cell as a whole. To prevent damage to mitochondrial and chloroplast dna from reactive oxygen species. To generate genetic diversity in a population (nuclear genes participate in sexual recombination) Lateral gene transfer takes a very long time so perhaps movement is still occurring. Perhaps the structure of the gene does not allow stable integration into the nuclear genome or they cannot survive the trop to the nucleus. How to detect presence of a specific dna sequence. Before conducting a southern blot, one must cut the dna using restriction endonuclease digest: dna digest cuts dna so that it can be manipulated; this is used in cloning and other techniques.

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