What is the purpose of our feeling pain?

Pain is an unpleasant sensation and emotional experience that links to tissue damage. It allows the body to react and prevent further tissue damage. People feel pain when a signal travels through nerve fibers to the brain for interpretation.

Explanation:

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.