Wanted to discover how bacteria made people sick

Used the technique called X-ray diffraction to capture the first picture of a DNA molecule

Wanted to determine which part of the virus (protein coat or DNA core) entered a bacterial cell

Discovered that nucleic acid was the transforming factor in the bacterial transformation process

Isolated two strains of bacteria onto petri plates: R strain and S strain

Found that the percentages of A=T and C=G in each and every organism

Discovered that DNA was a double helix and composed of two strands

Worked with certain types of bacteria to understand how pneumonia was produced

Built the first 3-dimensional working model of DNA and won a Nobel Prize

Came up with the process of transformation, when one strain of bacteria is changed by a gene or genes from another strain of bacteria

Found that nearly all the radioactivity in bacteria was phosphorus, determining that DNA was responsible for taking over bacteria from bacteriophages

Created his own “rule” regarding nitrogenous bases

Isolated the different parts of the S strain bacteria and injected them into the mouse

The people who stole Franklin’s results and did not give her any credit