The central and peripheral nervous systems in the vertebrates is comprised of

I) Central nervous system comprises of brain and spinal cord

II) Peripheral nervous system comprises of the rest of the nervous tissues found throughout the body

Explanation:

I) Central nervous system comprises of

- brain, made up of fore, mid and hind brain

- spinal cord

II) Peripheral nervous system comprises of the rest of the nervous tissues found throughout the body. It consists of the

- autonomic nervous system, which is further divided into parasympathetic and sympathetic nervous system

g1

choices:

a. g2. b. g1. c. m

cell division has two checkpoints namely, g1

checkpoint and spindle assembly checkpoint. the checkpoint which determines if

division has properly occurred is the g1 checkpoint. at this point, is a damage

in the dna is detected or  the has not reach the optimum size, the cell is

stopped in g1 and is not allowed to proceed to further process.

source:

this protocol provides a detailed procedure for chromatin immunoprecipitation (chip) to study the dna-protein interactions.