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#8Hershey and Chase Experiment
Zabrina Shvartsman
Ashley Sroka
Brendan Weiss
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EXPERIMENT
They wanted to see if PROTEIN or DNA was responsible for hereditary action
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EXPERIMENT CON’T.
Meaning, they wanted to know if you inherited your hair and eye color from your parents because of the PROTEIN or the DNA
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EXPERIMENT CON’T.
They used bacteriophages (viruses that invade bacteria) to discover the solution
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EXPERIMENT CON’T.
PROTEINS injected with sulfur– When they replicated, the new
bacteriophages weren’t radioactive
PROTEINS are not responsible for hereditary action
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EXPERIMENT CON’T.
DNA injected with phosphorous– When they replicated, the
new bacteriophages were radioactive
DNA is responsible for hereditary action
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EXPERIMENT CON’T.
http://nortonbooks.com/college/biology/animations/ch12a02.htm
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Question # 8
8. You want to use a radioactive tracer that will label only the protein in an RNA virus. Assume the virus is composed of only a protein coat and an RNA core. Which of the following would you use?
a. Radioactive phosphorousb. Radioactive nitrogenc. Radioactive sulfurd. Radioactive carbon
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Question # 8 con’t.
You would use sulfur Proteins contain sulfur, and not
phosphorous When the Hershey-Chase
experiment tested the proteins for hereditary action, their replicates were not radioactive