DNA is a fascinating world. That single molecule of life contains all the information about individual living being. Any bacteria, plant, insect, algae, fish, animal or human grows from that one molecule seed. Probably even some alien form still waiting to be discovered on some moon orbiting Jupiter or Saturn. In one way or another, the same could be true with all life in the universe. All of us are grown from that single instructions manual inside the single DNA set of written directions. And there are no two identical DNA in existence, even if we could mix the same two identical human egg and sperm cells several times, similar but different resulted DNA would always be the outcome. We are surely still not mastering the DNA and bio-engineering - it is still young science and even though one giant molecule of life was hinted by various scientists and scholars more than century ago, it was only in early fifties of 20th century when James Watson and Francis Crick created the first double