1865- Gregor Mendel: he found characteristics of pea plants that are passed down with the same traits as the plant that was used to bread it. He des covers the basic of genetics.
1903- Walter Sutton: he found out that chromosomes carry the cell's units of inheritance.
1911- Thomas hunt Morgan: he discovered that genes are arranged in a linear line up, he studied fruit flys for his discoveries.
1928- Fredrick Griffith: he discovered that bacteria contains a molecule and it can transfer genetic information from one cell to another. He used mice to experiment and test his theory.
1944- Oswald Avery- cheacked griffiths theory and concluded it was DNA.
1952- alfread Hersey and chase: they confirmed that the genetic material is DNA not protein.
1952- Rosalind franklin: used an x-ray to demonstrate and show the pattern of DNA.
2000- Craig venter and Francis Collins: discovered the sequence of DNA.