Describe the terms: Transformation Operon Recombination

A mutation at the operator site of a positive inducible operon that causes the sequence of the operator to change, would result in: Group of answer choices Activator unable to bind to DNA, transcription turned on Activator binds to DNA, transcription turned off Activator binds to DNA, transcription turned on Activator unable to bind to DNA, transcription turned off

Explain how alternate sigma factors can be used to initiate transcription of distinct sets of operons

In the lac operon, the lacZ gene codes for an enzyme called ____________, which catalyze the breakdown of the sugar __________ into monosaccharides. This enzyme can also hydrolyze the sugar analog ____________, which produces blue pigments following its breakdown. Since the lac operon is not always on the bacterial cells, we add the chemical ________ which prevents the lac depressor from binding to the operators, leading to constitutive expression of the operon.

Distinguish among inducible, repressible, and constitutive gene operons.

The genomic DNA of a bacterial cell is NOT destroyed by the cell’s own restriction enzymes because   Choose an answer from below: the bacterial DNA is too small to contain the recognition sequence for the enzymes. the restriction sites are occupied by histones. the genome is protected by the nuclear membrane. the restriction recognition sequences in the genome are protected by a microRNA. none of the above

Outline the steps of RNA interference.