Which statement about this figure is false?

In the context of the neural impulse, which of the following is true about the depolarization of neuron membranes?

What do all macromolecules have in common with each other? oa. they all are formed from the same elements.ob. they all have major roles in cell membranesoc. they all act as catalysts in the body.od. they all have peptide bonds between carbon atoms.

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities