Isolating Mutants and Replica Plating in Genetics

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Negative control shuts down transcription while positive control triggers transcription.

Negative control involves DNA binding of an activator while positive control involves DNA binding of a repressor.

Negative control triggers transcription while positive control shuts down transcription.

Negative control involves DNA binding of a repressor while positive control involves DNA binding of an activator. (correct)

It codes for a transcription activator that enhances lactose metabolism.

It codes for the enzyme transacetylase which allows lactose metabolism. (correct)

It codes for an enzyme that degrades lactose to prevent its build-up.

It codes for a repressor protein that inhibits lactose metabolism.

Binding of the repressor to the promoter region.

Interactions between repressor and activator proteins.

Release of the repressor due to lactose binding. (correct)

Export of sugars by the transacetylase enzyme.

It protects the cell from harmful sugars by exporting them. Signup and view all the answers

It codes for a repressor protein that exerts negative control over other genes. Signup and view all the answers

'Operon' Signup and view all the answers

Activators bind to DNA and trigger transcription. Signup and view all the answers

'Lactose-Induced Repression' Signup and view all the answers

Lactose binds directly to the repressor to induce transcription Signup and view all the answers

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