Practice question

MCQ

Question

The similarities between mitogenic stimulation by EGF and depolarization of the membrane of skeletal muscle cell by acetylcholine are

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Essential early step, an ion flux across the plasma membrane receptor Ligand mediated coformational change in the receptor of responding cell Correct Occurs independently without ligand or simulation. Mainly dependent on regulatory RNA binding sequences.

Explanation

In cell biology, cellular compartmentalization and cell cycle dictates that SNARE-mediated trafficking, Hayflick limit, P53 and cyclin regulation control proliferation. Therefore Ligand mediated coformational change in the receptor of responding cell is correct as it aligns with membrane trafficking and cell cycle control, supported by mechanistic studies and conserved across

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