The characteristic of ghost and ancestors spirits share are they are both of human origin.
Ghost of the dead, devils, angels and gods share a common characteristic, they are intentional agents, conscious about what they are thinking. The ancestor spirits see everything, and thus it is impossible to get away with an immoral act without being caught.
neurotransmitters is the answer
The phenotype is just a characteristic/trait.
For instance Brown and Green are phenotypes of eye color.
This can also be used in Punnet Squares, and could be displayed as B and G.
B equaling dominant Brown, and G = dominant Green, vice versa to g and b where they are recessive.
