Transcription and Regulation Which of the following conditions would cause the release of the lac repressor protein from the lac operator site on DNA? Presence of lactose in the growth media Both (b) and (c) Presence of glucose in the growth media Presence of IPTG (isopropyl thiogalactoside) in the growth media Presence of lactose in the growth media Both (b) and (c) Presence of glucose in the growth media Presence of IPTG (isopropyl thiogalactoside) in the growth media ANSWER DOWNLOAD EXAMIANS APP
Transcription and Regulation The closed complex at bacterial promoters is not affected by promoter mutations bound more tightly when repressors are present in equilibrium with free RNA polymerase and the promoter not affected by activator proteins not affected by promoter mutations bound more tightly when repressors are present in equilibrium with free RNA polymerase and the promoter not affected by activator proteins ANSWER DOWNLOAD EXAMIANS APP
Transcription and Regulation In eukaryotes, there are three different RNA polymerases. The RNA polymerase responsible for transcription of mRNA is RNA polymerase III RNA polymerase II none of these RNA polymerase I RNA polymerase III RNA polymerase II none of these RNA polymerase I ANSWER DOWNLOAD EXAMIANS APP
Transcription and Regulation The major function of RNA polymerase's sigma factor is recognition of the transcriptional stop sequence recognition of the translational stop sequence recognition of the translational start sequence recognition of the transcriptional start sequence recognition of the transcriptional stop sequence recognition of the translational stop sequence recognition of the translational start sequence recognition of the transcriptional start sequence ANSWER DOWNLOAD EXAMIANS APP
Transcription and Regulation What is a promoter? A specific DNA sequence to which a restriction endonuclease binds A specific sequence of DNA to which a catabolic repressor binds A specific sequence of DNA to which RNA polymerase binds None of these A specific DNA sequence to which a restriction endonuclease binds A specific sequence of DNA to which a catabolic repressor binds A specific sequence of DNA to which RNA polymerase binds None of these ANSWER DOWNLOAD EXAMIANS APP
Transcription and Regulation Transcription begins at the start codon downstream from the start codon upstream from the start codon none of these at the start codon downstream from the start codon upstream from the start codon none of these ANSWER DOWNLOAD EXAMIANS APP
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