Discovering DNA Review Quizizz

Which of the following terms refers to a segment of DNA the controls the expression of a trait?

• Chromosome
• Chromatid
• Gene
• Histone

Tags

NGSS.HS-LS3-1

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

Who proved that DNA was the transforming factor?

• Griffith
• Avery
• Chargaff
• Franklin

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 scientists used viruses and radioactive isotopes to definitively prove that DNA, and not protein, was the molecule of heredity?

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

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

Which scientist discovered that in any sample of DNA the amounts of adenine and thymine were always equal and the amounts of guanine and cytosine were always equal?

• Chargaff
• Avery
• Griffith
• Franklin

Which scientist used a technique called X-ray diffraction to study the structure of the DNA molecule?

• Watson and Crick
• Hershey and Chase
• Franklin
• Chargaff

Which scientists built a 3-D model of the DNA double helix?

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