BIOL 200 Study Guide - Final Guide: Barcode, Nuclear Dna, Exon
22 Jun 2016
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Endonuclease makes staggered cuts exposes 3" end, rt activity to do dna synthesis. Line rna ips up over the target dna. You create 2 direct repeats through the process of integration. Short interspersed elements mobilized non coding rna genes (alu from 7sl rna in humans) most abundant type of mobile element in the human genome utilizes enzymes encoded by lines and host genes for mobility. Processed pseudogenes mobilized protein coding genes originate from reverse transcribed mrna random, rare. Looks like protein coding gene but it isn"t. lack introns and control regions most are not expressed not transcribed because of lack of control regions. Reverse transcription introduces errors and mutations, and creates dead elements (alu and l1 in humans, ty1 and ty3 in yeast) Ancient transposable element, eventually degrade so that we can"t identify it as a gene. Transposon jumps into protein coding gene and knocks out function ex. maize color (purple to yellow)
