The dorsal column of the spine carries (impulse type)

Furthermore, as a general rule, nerve fibres carrying proprioceptive impulses through the fasciculus gracilis predominantly terminate in the dorsal nuclei situated in the posterior gray column of thoracic segment of the spinal cord and therefore do not reach the cervical levels of the spinal cord.

A) early horses is your answer

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.