If sarah had a viral infection that affected neuron function in the ventral root of the same spinal nerve, how would the signs and symptoms be different than those she has now

The symptoms that are caused by affected ventral roots are the following:

Sarah will not feel pain but her ability to locomotion will be affected.

Explanation:

The question here is Why Sarah will not feel pain ?

the answer is that neurons help us in sensation of pain, burn and touch. If the major part of spinal nerve is damaged how she will feel sensation of pain.

what are the options

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.