BIOLOGY 283 Lecture Notes - Lecture 20: Lac Operon, Lac Repressor, Interbase
4 Dec 2018
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Gene expression a prokaryotic gene expression and operons a the. Effect of mutation on phenotype muscular dystrophy as paradigm on prokaryotic gene expression. Tiga # fbp ta cotten called tata box ) gonnaboy pinball. C consensus consensus optimal inter - base distance. "t p - galactosidase thiogalacto side trans acetyl ase lactose per mease. I contribute to the metabolism of lactose an unusual sugar ] a. #tett constitutive on all the time s: the lac i gene is not part of the operon , but. Lac repressor me bound at operator when lactose is not present . Unbound : eukaryotic promoters ( core promoter elements ) L have to be there for transcription ) Downstream are promoter element: regulatory sequence can be far upstream , l transcription tutors bind there ) The gene is only expressed of both activators are present and the repressor is absent.
