DNA History Scientists

The work of scientists including Griffin, Avery, Hershey & Chase and Franklin helped us to determine the __ are responsible for carrying genetic material.

• Amino Acids
• Proteins
• Nucleic Acids
• Carbohydrates

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 was Watson and Crick's main scientific accomplishment?

• Building the first accurate model of DNA
• Isolating strains of pneumonia causing bacteria
• Determining base pairing rules
• Discovering the process of genetic transformation

If Chargaff found that a sample of DNA has 20% ADENINE, how much GUANINE would he have determined to be there?

• 30%
• 20%
• 80%
• 60%

If Chargaff found that a sample of DNA has 30% THYMINE, how much GUANINE would he have calculated to be there?

• 30%
• 20%
• 80%
• 60%

From his work with mice and pneumonia-causing bacteria, Frederick Griffin coined the term

• Replication
• Transcription
• Transformation
• Translation

By using radioactive isotopes, Hershey and Chase were able to conclude that __ is/are the carrier(s) of genetic information.

• nucleic acid
• Proteins
• Carbohydrates
• Lipids

Tags

NGSS.HS-LS3-1

The work of Erwin Chargaff allowed Watson and Crick to determine the rules of...

• protein synthesis
• transcription
• hydrogen bonding
• nitrogen base pairing

Rosalind Franklin's "Photo 51" allowed Watson and Crick to determine the ___ of DNA.

• Shape
• Backbone
• Nitrogen bases
• Hydrogen bonds

Griffith discovered that

• DNA is different than RNA.
• adenine = thymine.
• bacteria can transfer DNA.
• DNA is the genetic molecule.