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 IPTG (isopropyl thiogalactoside) in the growth media Presence of glucose in the growth media Both (b) and (c) Presence of lactose in the growth media Presence of IPTG (isopropyl thiogalactoside) in the growth media Presence of glucose in the growth media Both (b) and (c) Presence of lactose in the growth media ANSWER DOWNLOAD EXAMIANS APP
Transcription and Regulation The closed complex at bacterial promoters is not affected by activator proteins not affected by promoter mutations in equilibrium with free RNA polymerase and the promoter bound more tightly when repressors are present not affected by activator proteins not affected by promoter mutations in equilibrium with free RNA polymerase and the promoter bound more tightly when repressors are present ANSWER DOWNLOAD EXAMIANS APP
Transcription and Regulation Multiple copies of 5S genes, located at a chromosomal site distinct from the other rRNA genes are transcribed by rRNA polymerase II are transcribed by rRNA polymerase III and the 5S rRNA are transcribed by DNA polymerase I are transcribed by rRNA polymerase I and the 5S rRNA are transcribed by rRNA polymerase II are transcribed by rRNA polymerase III and the 5S rRNA are transcribed by DNA polymerase I are transcribed by rRNA polymerase I and the 5S rRNA ANSWER DOWNLOAD EXAMIANS APP
Transcription and Regulation The binding of lac repressor to DNA could be considered to be analogous to allosteric effects in enzyme regulation mixed-type inhibition of an enzyme uncompetitive inhibition of an enzyme competitive inhibition of an enzyme allosteric effects in enzyme regulation mixed-type inhibition of an enzyme uncompetitive inhibition of an enzyme competitive inhibition of an enzyme ANSWER DOWNLOAD EXAMIANS APP
Transcription and Regulation Most transcripts of protein coding genes are cleaved at the 5' end immediately after a poly adenylation signal at the 3' end just after a poly adenylation signal at the 3' end just before a poly adenylation signal at the 5' end immediately before a poly adenylation signal at the 5' end immediately after a poly adenylation signal at the 3' end just after a poly adenylation signal at the 3' end just before a poly adenylation signal at the 5' end immediately before a poly adenylation signal ANSWER DOWNLOAD EXAMIANS APP
Transcription and Regulation The major function of RNA polymerase's sigma factor is recognition of the translational start sequence recognition of the transcriptional start sequence recognition of the translational stop sequence recognition of the transcriptional stop sequence recognition of the translational start sequence recognition of the transcriptional start sequence recognition of the translational stop sequence recognition of the transcriptional stop sequence ANSWER DOWNLOAD EXAMIANS APP
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