All of the following types of nerve impulses are carried by the axons of afferent neurons except:
a. nerve impulse for directing organ activity.
b. nerve impulse for temperature.
c. nerve impulse for touch.
d. nerve impulse for pain.

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.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides