Griffith, Avery and Hershey and Chase

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

What did Avery use to destroy proteins, lipids, and carbohydrates to show that DNA was the transforming factor?

• Bacteriophages
• X-ray diffraction
• Enzymes
• Radioactive isotopes

Which two radioactive isotopes were used to label the DNA and protein components of viruses called bacteriophages?

• Nitrogen and Phosphorus
• Phosphorus and Sulfur
• Nitrogen and Sulfur

Who proposed that DNA was not a protein?

• Oswald Avery

• James Watson

• Martha Chase

• Harry Styles

What was directly, quantitatively measured in Hershey and Chase experiment?

• Radiation concentration

• Number of bacterium

• amount of protein

• concentration of phosphorus

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

• Mendel
• Avery
• Chargraff
• Griffith

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

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

Tags

NGSS.HS-LS3-1

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

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