Howard Temin and Satoshi Mizutani discovered that the Rous sarcoma retrovirus contains the enzyme reverse transcriptase. Why would it be important for the virus to carry its own reverse transcriptase protein? Why wouldn't the virus just make it from its reverse transcriptase gene after it infects the cell?

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The virus must carry its own reverse transcriptase because it differs from the cell's reverse transcriptase.

Translation of the viral mRNA is too slow for a productive viral infection.

It is not important. The virus could make its own reverse transcriptase from its viral RNA after infection.

The retrovirus needs its reverse transcriptase to make DNA before it can use the cell's molecular machinery to make new reverse transcriptase.

 

asked Dec 27, 2012 in Biology by anonymous
    

1 Answer

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The retrovirus needs its reverse transcriptase to make DNA before it can use the cell's molecular machinery to make new reverse transcriptase.

 

answered Dec 27, 2012 by anonymous

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