Announced the theory of natural selection - that only those of a population who are better adapted to the environment are able to survive and pass on their traits.
Published "Experiments on Plant Hybridization" which discusses Law of Segregation and the Law of Independent Assortment.
Identified an acidic substance found in cell nuclei which is called "nuclein" and later became known as DNA.
Described that the behavior of sex chromosomes - XX determines female and XY determines male.
Discovered that genes are linked and do not show independent assortment. Coins the word "genetics".
Showed that X-rays prompt mutations depending on the number of doses.
Discovered that genetic material can be transferred side-by-side between bacterial cells.
Solved the three-dimensional structure of the DNA molecule.
These researchers cracked the genetic code using RNA homopolymer and heteropolymer experiments.
Researchers from Roslin institute in Scotland perform the first cloning of a mammal, Dolly the sheep.