NATS 1670 Lecture 30: Lecture 30
26 Mar 2017
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Document Summary
Bases in nucleotides of the rna strand form pairs with the bases in dna strand. Rna nucleotides contain sugar ribose which has 2" hydroxyl group of the last nucleotide. During the reaction, a pyrophosphate ion is released and broken down which release energy that fuels transcription. Termination is the last step to the process where rna transcript is released from the template. Rna polymerase: synthesizes an rna transcript using one strand of na as the template. This strand is the template strand, and the other one is non-template strand. Rna polymerase synthesizes the rna strand in the 5" --- 3" direction. This rna is complementary to the dna template strand. Transcription begins near promoter sites and ends at the terminator sites. The enzyme rna polymerase binds to a specific site in dna (promoter) with the help of transcription factors. Outside of membrane, there is a site to recognize chemicals. The response to the chemicals is inside the membrane.
