Questions
What was observed after centrifugation was done in bacterial cells that were infected with a bacteriophage growing in presence of radioactive phosphorous?
a
The supernatant becomes radioactive due to the presence of radioactive phosphorous and the precipitate remains non-radioactive.
b
The sediment becomes radioactive due to the presence of radioactive phosphorous and the supernatant remains non-radioactive.
c
Both supernatant and sediment become radioactive.
d
Radioactivity is observed neither in precipitate nor the supernatant.
detailed solution
Correct option is B
After centrifugation is done in bacterial cells that were infected with a bacteriophage growing in presence of radioactive phosphorous, the sediment becomes radioactive due to the presence of radioactive phosphorous and the supernatant remains non-radioactive.Talk to our academic expert!
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Viruses of bacteria grown in the presence of radioactive phosphorus contained:
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