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The Hershey-Chase Experiment quiz Flashcards

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The Hershey-Chase Experiment quiz
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  • What was the main conclusion of the Hershey-Chase experiment?
    The Hershey-Chase experiment concluded that DNA, not protein, is the genetic material.
  • Which part of the bacteriophage was labeled with radioactive sulfur in the Hershey-Chase experiment?
    The viral protein coat was labeled with radioactive sulfur.
  • What did Hershey and Chase use to label the viral DNA in their experiment?
    They used radioactive phosphorus to label the viral DNA.
  • During the bacteriophage infection, where was the radioactively labeled protein found?
    The radioactively labeled protein was found on the outside of the bacterial cell.
  • What evidence did the Hershey-Chase experiment provide regarding the genetic material?
    The experiment provided evidence that DNA is the genetic material because only the radioactively labeled DNA entered the bacterial cells.
  • How did the Hershey-Chase experiment help resolve the controversy about genetic material?
    It confirmed that DNA, not protein, is the genetic material, ending the controversy.
  • What type of organism did Hershey and Chase use in their experiment?
    They used bacteriophages, which are viruses that infect bacteria.
  • What was the role of radioactive sulfur in the Hershey-Chase experiment?
    Radioactive sulfur was used to label the viral protein coat.
  • What did the presence of radioactive phosphorus inside the bacterial cells indicate?
    It indicated that the viral DNA had entered the bacterial cells, serving as the genetic material.
  • Why was the Hershey-Chase experiment significant in the field of molecular biology?
    It was significant because it provided clear evidence that DNA is the genetic material, not protein.
  • What method did Hershey and Chase use to trace the viral particles during infection?
    They used radioactive labeling to trace the viral particles.
  • What did Hershey and Chase observe about the radioactively labeled protein during infection?
    They observed that the radioactively labeled protein remained outside the bacterial cells.
  • What was the key finding regarding the location of radioactively labeled DNA in the Hershey-Chase experiment?
    The key finding was that the radioactively labeled DNA was found inside the bacterial cells.
  • How did the Hershey-Chase experiment contribute to our understanding of genetic material?
    It confirmed that DNA is the genetic material responsible for heredity.
  • What was the purpose of using two different radioactive labels in the Hershey-Chase experiment?
    The purpose was to distinguish between the viral protein coat and the viral DNA.