Unformatted text preview: sequences such as enhancers can affect
transcription. adds NTPs at 3’ end of new polynucleotide until it encounters a termination
signal at defined sequence and/or structure on the DNA template. the “pre-RNA” is “processed” into the mature RNA. In eucaryotes mRNA is
transported to the cytoplasm.
15 BIO 1140 Unit 2-2: Transcription Transcription
Overview Fig. 13-6, p. 290
(see also Fig 13-4 16 BIO 1140 Unit 2-2: Transcription DNA is the reddish part, where transciption starts. Transcription
(initiation) Fig. 13-6, p. 290
(see also Fig 13-4 17 TATA BOX: A-T rich sequence, the point at which
RNA polymerase binds to start transcription and it
helps to open up the helix. These are consensus
sequences, so if you line them up and see the
percentage of which one comes first and right (A-T),
they are variants that exist in a population. Unwind
the stransd and start transcribing and add RNA. May
have a step loop struction and fold up, so you would
need single binding proteins to keep the helix
opened. It may...
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This note was uploaded on 03/26/2014 for the course BIO 1140 taught by Professor Fenwick during the Winter '07 term at University of Ottawa.
- Winter '07