BIOLOGY 1A03 Lecture Notes - Lecture 13: Rho Factor, Transcription Bubble, Stem-Loop
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BIOLOGY 1A03 Full Course Notes
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Process of dna transcription mrna translation (nucleotide amino acids proteins) Dna has a template strand and a non-template strand. Sequence of the mrna is the same as that of the non-template strand except for the uracil replaces thymine. Rna polymerase attaches to specific promoter regions of dna. Promoter regions (start of the specific gene) indicate the transcriptional starting point where. 10 region consensus sequence tataat is positioned -10 nucleotides upstream. 35 region additional sequence ttgcca -35 nucleotides up stream of the transcription start site, can enhance the rate of transcription and are proteins called sigma factors which directly recognize and bind the promoter region. Rna polymerase core enzyme binds to a sigma subunit to create a holoenzyme that is capable of binding to and unwinding the double-stranded. Different sigma factors are able to identify specific promoters to the rna polymerase, and therefore assist with turning genes on and off when needed. Biology 1a03 theme 2 module 1 and 2.