30 points! When is gene expression blocked in the lac operon system?

The repressor protein destroys the genes required to produce enzymes.

The repressor protein blocks the genes from making mRNA.

Lactose binds to the repressor and changes its shape.

RNA polymerase begins transcribing the genes.

B

Explanation:

The repressor protein blocks the genes from making mRNA

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the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.