Explain uses of paternity testing by society
A '''paternity test''' is used to ascertain who is the [[father]] of another person. It is frequently done by [[DNA]] analysis of the [[mother]], [[child]], and the possible father. Since a person's DNA is the same in all of their cells, DNA testing can be done with a [[blood]] sample, a swab of [[skin]], or a lock of [[hair]]. A comparison of one's DNA sequence to someone else's will show if either of them is the parent of the other.