Publishes The Origin of Species. Darwin's book introduced the scientific theory that populations evolve over the course of generations through a process of natural selection.
Gregor Mendel discovers genetic info passed down through generations
Gregor Mendel was an Austrian monk and botanists. He experimented on pea plants and noticed that the plants offsprings height, exhibited dominant and recessive traits.
Nettie Stevens and Edmund Wilson describe beahvior of sex chromosomes
Independently described the behavior of sex chromosomes-XX determines female; XY determines male.
Genes Control Biochemical Events
George Beadle and Edward Tatum discover through experiments on neurospora, a bread mold, that genes are responsible for the production of enzymes. Their report is the genesis of the "one gene-one enzyme" concept.
Rosalind Franklin X-rays of DNA
Obtained sharp X-ray diffraction photographs of DNA.
Susumu Ohnov was one of the most famous developers of this theory in his classic book Evolution by gene duplication. The duplication of a gene results in an additional copy that is free from selective pressure.
New created organsim allowed to digest crude oil for oil spills
In 1980, the U.S. Supreme Court, in Diamond v. Chakrabarty, upheld the first patent on a newly created living organism, a bacterium for digesting crude oil in oil spills.
First animal cloning
July 6, 1996
Animal cloning- first mammal to be cloned (sheep). A bull was then later cloned in May.
Human Genetic Engineering
An example of this genetic engineering is taking infertile women and correct defects in their mitochondria to have children.
Genetic tests on animals by FDA
FDA test to change genes and traits. It was to make animals stronger, faster, and sharper than normal predecessors.