Alternative form of a specific recessive or dominant gene

Which of the following represents a negatively charged ion? of t 7

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer