Which of the following best describes the action of the lac repressor in the presence of an abundance of lactose? A. Allolaktose aktiveer die lac-repressor wat sy binding met die operator bevorder en sodoende transkripsie inhibeer / Allolactose activates the lac repressor promoting its binding with the operator, thus inhibiting transcription B. Allolaktose inaktiveer die lac-repressor wat sy binding met die operator bevorder en sodoende transkripsie bevorder / Allolactose inactivates the lac repressor promoting its binding with the operator, thus promoting transcription C. Allolaktose aktiveer die lac-repressor wat sy binding met die operator voorkom en sodoende transkripsie inhibeer / Allolactose activates the lac repressor preventing its binding with the operator, thus inhibiting transcription D. Allolaktose inaktiveer die lac-repressor wat sy binding met die operator voorkom en sodoende transkripsie bevorder / Allolactose inactivates the lac repressor preventing its binding with the operator, thus promoting transcription

4. What molecule serves as an inducer of the lac operon?a) Lactosec) Allolactoseb)e) lacl

Lactose or its analogues act as positive regulators of Lac operon by:Select one:a. Binding to repressor subunits so that the repressor cannot attached to operator locus.b. Attaching to I gene and preventing its expressionc. Attaching to promoter region and facilitating the biding of RNA polymerased. Increasing the synthesis of catabolic gene activator protein.Clear my choice

Regulation of bacterial operons by inducers, e.g. lactose, exhibits which of the following properties?(1) Inducer binds to the repressor and __________(2) Inducer effect on RNA polymerase binding to the promoter: ___________(3) Repressor produced by:Select one:A.(1) Activates the repressor, (2) Enhances, (3) A separate geneB.(1) Inhibits the repressor, (2) No effect, (3) A separate geneC.(1) Inhibits the repressor, (2) Inhibits, (3) Genes of the operonD.(1) Activates the repressor, (2) Inhibits, (3) A separate geneE.(1) Activates the repressor, (2) Enhances, (3) Genes of the operon

In the absence of lactose, the lac repressor is

Ask StudybuddyThe activation of the lac operon requires a signaling molecule regulated by what monosaccharide? An increase in the synthesis of tryptophane regulated by Lac z A decrease in cAMP synthesis regulated by an increase in glucose An increase in cAMP regulated by a decrease of glucose A decrease in tryptophane that activates cAMP synthesis An increase in lactose that activates cAMP synthesis