What is a DNA paternity test?

Q: What is a DNA paternity test?

A: DNA paternity test is a test to establish whether a person (male) is biological parent of another person or not. The DNA of an individual is almost exactly the same in each and every somatic (non reproductive) cell. Sexual reproduction brings the DNA of both parents together randomly to create a unique combination of genetic material in a new cell, so the genetic material of an individual is derived from the genetic material of both their parents in roughly equal amounts. This genetic material is known as the nuclear genome of the individual, because it is found in the nucleus.