BIOLOGY 2C03 Study Guide - Final Guide: Complementary Dna, Petunia, Epigenetics
21 Mar 2016
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Ac = autonomous element, encodes all necessary information for its own movement (transposase and inverted repeats), unstable. Ds = non-autonomous element, requires a related autonomous element in order to move (ac), unstable in the absence of ac. Ac-ds family (maize) of transposable elements similar to p elements in lies both are mutagenic. Ac/ds & p elements) dna element that moves directly from one position in genome to another ( cut and paste ) or may be copied and moved as a. Retrotransposons use an rna intermediate, related to retroviruses, replicative mechanism of transposition, encode a reverse transcriptase that makes a dna copy of the rna that can be integrated into the genome (eukaryotes) Resemble animal retroviruses single-stranded rna that uses a double-stranded. Rna is copied into dna by reverse transcriptase. Sines short interspersed elements: short dna sequences transcribed by rna polymerase, do not encode reverse transcriptase rely on other mobile elements for transposition. Middle of gene cannot make correct protein.
