Biology 1001A Study Guide - Quiz Guide: Meiosis, Antimicrobial Resistance, Transposase
Document Summary
If mismatched, dna polymerase backs up and fixes it with a built in deoxyribonuclease. The repair is then sealed by dna ligase: the same repair mechanism (excision repair) also detects and corrects damage in dna cause by chemicals and radiation (like uv light, differences among insertion sequences, transposons and retrotransposons. Insertion sequence: an insertion sequence codes only for its own insertion and transposition (like transposase), it does not contain any other genes: transposons: transposons are insertion sequences (cid:498)plus(cid:499). They not only code for insertion, they also carry along a few other genes with them: retrotransposons: they insert themselves into a genome first by making an. Rna copy of the original dna sequence then reverse transcriptase (encoded by one of the retrotransposon genes) uses the rna template to make a dna copy of it. Is elements: inverse repeats, code only for their own transposition (transposase: transposons: code for their transposition but carry genes along with them, retrotransposons: move via.
