Upon removal of bacteriophage coats from infected bacterial cells, where was the label for the DNA?

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Upon removal of bacteriophage coats from infected bacterial cells, where was the label for the DNA?

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Answer 1

Answer #1

The labelled DNA was found in the genome of the bacteria.

Messelson and Stahl experiment :

Radiolabelled phosphorus present in protein coat of the bacteriophage + E coli cells = radioactivity was found in phage ghost (protein coat of bacteriophage) = protein is not transferred from virus to bacteria, so it is not a genetic material

Radiolabelled sulphur present in genome of the bacteriophage + E coli cells = radioactivity was found in the genome of E coli = DNA was transferred from virus to bacteria so it is the genetic material

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Answer 2

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Upon removal of bacteriophage coats from infected bacterial cells, where was the label for the DNA?

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Upon removal of bacteriophage coats from infected bacterial cells, where was the label for the DNA?

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