IB Biology: A1.2-Hershey-Chase Experiment and Bacteriophages

What is a bacteriophage?

• A type of bacterium

• A virus that infects bacteria

• A type of protein

• A genetic material

What was the primary goal of the Hershey-Chase experiment?

• To discover new types of bacteria

• To develop new antibiotics

• To demonstrate that DNA is the genetic material

• To study viral replication

Which radioactive isotope was used to label the DNA of the bacteriophages?

• Radioactive sulfur

• Radioactive carbon

• Radioactive phosphorus

• Radioactive nitrogen

What was concluded about proteins based on the Hershey-Chase experiment results?

• Proteins are the primary genetic material.

• Proteins are passed from viruses to bacteria during infection.

• Proteins were not passed from viruses to bacteria during infection.

• Proteins are essential for viral replication.