Deoxyribonucleic acid (DNA) is a molecule that carries the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses. DNA and ribonucleic acid (RNA) are nucleic acids; alongside proteins, lipids and complex carbohydrates, they are one of the four major types of macro-molecules that are essential for all known forms of life. Most DNA molecules consist of two biopolymer strands coiled around each other to form a double helix. And somehow we are led to believe that DNA and RNA magically appeared in species on planet Earth. TA-DA! what wedding items to wear for mature brides over 50/60