The History of DNA

Front

Who were the scientists that based their investigations on Rosalind Franklin's research?

Back

James Watson and Francis Crick

Front

Who proposed that DNA was not a protein?

Back

Oswald Avery

Front

Who conducted an experiment using pneumococcus bacteria?

Back

Oswald Avery

Front

Who utilized the 'blender experiment' in their research?

Back

Alfred Hershey & Martha Chase

Front

Who used x-rays to figure out the structure of DNA?

Back

Rosalind Franklin

Front

What is the significance of Rosalind Franklin's x-ray diffraction images?

Back

They provided critical evidence for the helical structure of DNA.

Front

What did Erwin Chargaff discover about DNA?

Back

He discovered that the amount of adenine equals thymine and the amount of guanine equals cytosine, known as Chargaff's rules.

Front

What was the main conclusion of the Hershey-Chase experiment?

Back

DNA is the genetic material, not protein.

Front

What is the structure of DNA?

Back

DNA is a double helix composed of two strands of nucleotides.

Front

What are nucleotides made of?

Back

Nucleotides consist of a phosphate group, a sugar (deoxyribose), and a nitrogenous base.