Bio-Physics (M.Phil./Ph.D.) 2016 Panjab University Entrance Exam With Answers

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23.

Double stranded DNA is made radioactive in both the chains. It is allowed to replicate twice in a non-radioactive medium and the result should be:q

A: All the strands have radioactivity
B: Half the strands have radioactivity
C: Three strand have radioactivity
D: Radioactivity is absent in all the strands

The answer is: B

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