Asynthetic toxin destroys the myelin covering your optic nerves and motor neurons. what effect will the destruction of myelin sheaths have on the signaling capability of a neuron?

Myelin sheaths, which cover the axon of the nerve cells in the brain and spinal
cord, prevents the electric current from dissipating from the axon.
 Destroying the myelin sheaths impairs the conduction of signals on the affected nerves, causing damage in every function that the nerve is involved, in this case will affect movements and vision.

The answer is a: the eggs have half as many chromosomes as the body cells