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Aneli [31]
2 years ago
13

Gene expression from the lac operon can be controlled in many ways, including a robust negative regulation strategy. Select muta

tions that would reduce the effectiveness of this negative regulation and increase lac operon activity.

Biology
1 answer:
SIZIF [17.4K]2 years ago
5 0

Answer:

I think its the first and third one. I may be wrong I am not sure.

Explanation:

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At the constructive boundary, as two plates move away from each other, magma from the mantle rises to occupy the void. The magma cools to form new crust in between the two plates.

As new crust is formed at the constructive boundaries and old crust is destroyed at destructive boundaries this maintains a balance that ensures the crust is maintained more or less the same size over time. The only difference is that the crust shift position due to these tectonic plates movements driven by convection currents of the mantle.

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