Discovery of DNA

What organism(s) did Frederick Griffith study? There may be 2!

• mice

• bacteriophage

• bacteria

Who discovered that bacteria could be changed by the process of transformation?

• Griffith

• Hershey & Chase

• Avery

• Franklin

Who discovered that genes were composed of DNA?

• Oswald Avery

• Frederick Griffith

• Hershey & Chase

• Erwin Chargaff

Who discovered that the genetic material in a bacteriophage was DNA?

• Hershey & Chase

• Griffith

• Avery

• Watson & Crick

Who worked with Hershey?

• Chase

• Watson

• Franklin

• Crick

Who discovered that A = T and C = G?

• Chargaff

• Franklin

• Watson & Crick

• Griffith

Who took a picture of DNA using X-ray diffraction?

• Rosalind Franklin

• Watson & Crick

• Oswald Avery

• Hershey & Chase

Who developed the double-helix model of DNA?

• Watson & Crick

• Avery

• Hershey & Chase

• Franklin

Who did Crick do his research with?

• Watson

• Avery

• Hershey

• Chase

What is a virus that infects bacteria called?

• bacteriophage

• infectious virus

• transformation

• gene change