People

Question 1

Frederick Griffith

Answer 1

discovered that heat-killed virulent bacterial cells release hereditary material that can be transferred to harmless cells making them harmful. (something not harmful can become harmful)

Question 2

Oswald Avery

Answer 2

wanted to determine if protein, DNA or RNA was transferred in Griffith’s experiments
Discovered that DNA was responsible for the transformation in Griffith’s experiments.

Question 3

Hershey-Chase Experiment

Answer 3

Martha Chase and Alfred Hershey confirmed that DNA is the hereditary (DNA is what new generations inherit the genes from) material using viruses that enter bacteria called bacteriophages
They used radioactive isotopes to make the protein and the DNA.

Question 4

James Warson and Francis Crick

Answer 4

with the help of a X-ray diffraction photo taken by Rosalind Franklin and Maurice Wilkens, Watson and Crick were able to determine the double helix structure of DNA.