In an Experiment Like That of the 1952 Hershey and Chase

question 3

Multiple Choice

In an experiment like that of the 1952 Hershey and Chase experiments,³⁵S was added to a phage replicating within its bacterial host.The new phage particles were carefully isolated and used to infect fresh bacterial cells in the absence of any radioisotopes.Where would you expect to find the ³⁵S radioisotope immediately after infection?

• A)in the phage ghosts outside the bacterial cells
• B)incorporated into the bacterial matrix proteins
• C)incorporated into the bacterial DNA
• D)inside the bacterial cells,but separate from the bacterial DNA
• E)inside the bacterial cells,but separate from the bacterial proteins

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