History of DNA

What was the result of mixing rough bacteria with heated smooth bacteria in Griffith's experiment?

• Mice survived

• Mice died

• Mice became immune

• No change in mice

What did sulfur-35 mark in Hershey and Chase's experiment?

• DNA core

• Protein coat

• Lipid membrane

• Carbohydrate shell

What did phosphorus-32 mark in Hershey and Chase's experiment?

• Protein coat

• Lipid membrane

• DNA core

• Carbohydrate shell

What was the main focus of Oswald Avery's experiment?

• To study bacteria growth

• To identify the transformation factor

• To develop new antibiotics

• To create vaccines

Who used Franklin's pictures to construct a 3D model of DNA?

• Hershey and Chase

• Watson and Crick

• Chargaff and Franklin

• Mendel and Darwin

What did Hershey and Chase demonstrate about DNA?

• DNA is a protein

• DNA is the source of genetic information

• DNA is a lipid

• DNA is a carbohydrate

Tags

NGSS.HS-LS1-1

What type of experiments did Hershey and Chase conduct?

• Experiments with plants

• Experiments with bacteria

• Experiments with bacteriophages

• Experiments with animals

Which scientist is associated with the discovery of equal amounts of adenine and thymine in DNA?

• Rosalind Franklin

• James Watson

• Erwin Chargaff

• Francis Crick

What did Watson & Crick contribute to the field of genetics?

• Discovered the double helix structure

• Took an X-ray diffraction photo of DNA

• Proposed the base pairing rule

• Determined nucleic acids caused transformation

What did Rosalind Franklin's X-ray diffraction photo reveal about DNA?

• It is a double helix

• It is single-stranded

• It causes transformation

• It has equal amounts of A&T, and G&C