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

The transfer of genetic material from one cell to another cell or from one organism to another.

• Transformation

• Transduction

• Conjugation

• None of these

This scientist(s) found a "transforming principle" that changed harmless bacteria into harmful bacteria

• Mendel
• Avery
• Chargraff
• Griffith

Scientist(s) who used chemical analysis to show that the genetic material in bacteria was DNA

• Griffith
• Hershey & Chase
• Mendel
• Avery

In the early 1900s, most scientists thought it was _____________ that carried traits form parent to offspring. 

• Carbohydrates
• Lipids
• Proteins
• DNA

This scientist(s) conducted experiments that involved injecting mice with S bacteria and R bacteria.

• Avery
• Griffith
• Watson & Crick
• Hershey & Chase

The scientist(s) who settled the debate about whether it was proteins or DNA that was the genetic material of the cell

• Avery
• Hershey & Chase
• Watson & Crick
• Griffith

Who discovered the process of transformation while trying to create a vaccine against bacterial pneumonia?

• Griffith
• Avery
• Hershey and Chase
• Watson and Crick

What organism was Griffith using when he discovered that a harmless strain of bacteria could transform into a lethal strain of bacteria?

• pea plants
• fruit flies
• bacteriophages
• mice