Scientists

1. Gregor Mendel (1822-1884)

• "Father of Genetics"

• Discovered basic principles of inheritance through pea plant experiments

2. Frederick Griffin (1877-1941)

• Credited with transforming principle: bacteria can transfer genetic information

• Rat experiment with bacteria

3. Alfred Hershey (1908-1997) and Martha Chase (1927-2003)

• DNA held genetic information not protein

4. Erwin Chargraff (1905-2002)

• Chargraff’s rule: Adenine - Thiamine, Guanine- Cytosine

5. Rosalind Franklin (1920-1958)

• Produced X-ray diffraction images of DNA, crucial for understanding its structure

6. James Watson (1928-) and Francis Crick (1916-2004)

• Proposed the double helix structure of DNA

7. Charles Darwin (1809-1892)

• Created “On the Origin of Species”

• Credited with theory of evolution (all life descended from common ancestors

8. Carl Linnaeus (1707-1778)

• “Father of Taxonomy”

• Created a system of naming called binomial nomenclature

9. Charles Lyell (1797-1875)

• Uniformitarianism

10. James Hutton (1726-1797)

Gradualism