MHT CET Biology question
In Hershey-Chase’s experiment, when the radioactive viruses were allowed to infect E. coli, what was observed? (i) E. coli which were infected by viruses with radioactive DNA became radioactive (ii) E. coli which were infected by viruses with radioactive protein did not become radioactive (iii) E. coli which were infected by viruses with radioactive DNA did not become radioactive (iv) E. coli which were infected by viruses with radioactive protein became radioactive
Answer: (A)
Solution
Only the phage DNA (32P) enters the bacterium, so cells infected with radioactive-DNA phages became radioactive (i) and cells infected with
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