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| Description: Intrinsic termination. Inverted repeat DNA sequences alone initiate transcription terminationIntrinsi c termination. Inverted repeat DNA sequences alone initiate transcription termination Termination sequence Inverted Inverted repeat 1 repeat 2 DNA-3,? ‘ Spacer sequence Polyadenine sequence 0 Intrinsic termination sequences contain inverted repeats separated by a spacer sequence and followed by a polyadenine sequence. Stem 9 Inverted repeat sequences in the transcript fold into a complementary stem ending in a single- stranded loop. Loop A A A A A A 0 Hydrogen bonds between RNA A~U base pairs break, transcript releasing the transcript and terminating transcription. Picture Stats: Views: 59 Filesize: 974.82kB Height: 3153 Width: 1500 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=48627 |