DNA or Deoxyribonucleic Acid - is known as the building block of the human race and can be found within almost every cell of the human body.

This molecular structure is a genetic blueprint that cannot be altered and can be used not only for helping the body grow, but can also be used as a means of identification.

DNA is invisible to the naked eye, but present in all bodily fluids. It can be used in criminal investigations to prove the guilt or innocence of a suspect.