Ambrotype : Mid-19th century photographic process introduced in 1851-52 by Frederick Scott Archer and Peter Fry. It used weakcollodion negatives which were bleached and backed by a black background which produced the effect of a positive image.
Deoxyribonucleic Acid [DNA]
Deoxyribonucleic acid is a molecule that encodes the genetic instructions used in the development and functioning of all known living organisms and many viruses. DNA and RNA are nucleic acids; alongside proteins, they compose the three major macromolecules essential for all known forms of life.
