DNA History

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

• Hershey and Chase

• Watson and Crick

• Chargaff and Franklin

• Griffith and Avery

Who used x ray diffraction to see DNA?

• Watson

• Chargaff

• Franklin

• Crick

Watson and Crick were the first to suggest that DNA is _____

• a short molecule

• the shape of a double helix

• a protein molecule

• the genetic material

What did Erwin Chargaff conclude from his experiments?

• Nitrogen bases are held together by peptide bonds

• A and T, C and G always occur in equal amounts

• Proteins are the carriers of genetic information

• C and G rarely occur in eukaryotic organisms

What does CODIS stand for?

• Crazy Old Dogs Intimidate Snakes

• Convicted Offender DNA Index System

• Combined DNA Index System

• Cameron Occasionally Dreams Instead of Studying

Who developed the double-helix model of DNA?

• Watson & Crick

• Avery

• Hershey & Chase

• 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 is responsible for producing this image?

• Francis Crick

• James Watson

• Rosalind Franklin

• Watson and Crick

Tags

NGSS.HS-LS1-1

Who discovered the structure of DNA?

• Watson and Crick

• Hershey and Chase

• Franklin and Wilkins

• Avery and Griffith