Work with heredity and genes
Gregor Mendel publishes work on hereditary traits in peas. He notes that certain traits are passed from parent to offspring. Later these factors are called genes.
DNA, the molecule carrying the genetic instructions of life, was arguably one of the most important discoveries of the last century. DNA is used in the development of all forms of known life, is composed of 4 nucleotides, and has the form of a double helix. This is a timeline of the discovery and development of DNA.