Genetics Quiz 7: Experiments & Researchers

Who was responsible for determining the base pairing of DNA?

• Watson 
• Crick
• Chargaff
• Wilkins

What was the final piece of the puzzle that Watson needed help with to determine in order to find the structure of DNA?

• how that backbone fit together
• the number of strands
• whether it was a helix
• how the base pairs bonded 

Who showed Watson the 'photo 51' that Franklin had taken of the B-form of DNA?

• Raymond Gosling
• Maurice Wilkins
• Frances Crick
• Lawence Bragg

Who won Nobel prizes for the discovery of the structure of DNA?

• Watson, and Crick
• Watson, Crick, Wilkins
• Watson, Crick, Wilkins, Franklin
• Watson, Crick, Wilkins, Franklin, and Gosling

Franklin's photos proved that DNA was 

• a helix
• a helix and two strands
• not a helix but two strands
• a helix that was one strand

By using radioactive isotopes, _______ were able to conclude that ____ is/are the carrier(s) of genetic information.

• Hershey and Chase, DNA

• Hershey and Chase, Proteins

• Griffith, DNA

• Rosalind F. , DNA

In Avery and Mcload experiment

• DNAase was used to destroy DNA molecules.

• Radioactive sulfur was detected in proteins.

• RNAase was an enzyme used to replicate RNA.

• The blender helped to mix all the bacteria and enzymes ingredients.

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