The large division of the brain that deals mainly with sensory and motor relays centers is:

Salutations!

The large division of the brain that deals mainly with sensory and motor relays centers is:

The large division of the brain that deals mainly with sensory and motor relays centers is: forebrain. The forebrain in the further most portion of the brain, that includes cerebral hemispheres, thalamus, hypothalamus, higher vertebrates. These are the leading controls of sensory and motor relays etc.

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It seems that you have missed the necessary options for us to answer the given question above, but anyway, here is the answer. The percentage that allele frequency of a particular trait will represent the least amount of genetic variation is 100% as there would only be that allele in the population there would be no variation. Hope this helps.