Identifying the Substance of the Gene

The first scientist to perform multiple tests on the transforming principle, to determine if it was DNA or protein

• Griffith

• Chargraff

• Avery

• Hershey

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-LS1-1

NGSS.HS-LS3-1

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

Tags

NGSS.HS-LS3-1

Griffith discovered that

• DNA is different than RNA.

• adenine = thymine.

• bacteria can transfer DNA.

• DNA is the genetic molecule.

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

• Chromosome

• Chromatid

• Gene

• Histone

Which scientist's experiment involved the use of bacteriophages to determine the genetic material?

• A) Griffith

• B) Avery

• C) Hershey and Chase

• D) Watson and Crick

What was the main conclusion of Griffith's experiment with Streptococcus pneumoniae?

• A) DNA is the genetic material

• B) Bacteria can transfer genetic information

• C) Proteins are the genetic material

• D) RNA is the genetic material

In the Hershey-Chase experiment, which part of the bacteriophage was labeled with radioactive sulfur?

• A) DNA

• B) Protein coat

• C) Lipids

• D) Carbohydrates

What did Avery, MacLeod, and McCarty use to demonstrate that DNA is the transforming principle?

• A) Enzymes that degrade proteins

• B) Enzymes that degrade DNA

• C) Enzymes that degrade RNA

• D) Enzymes that degrade lipids