The picture on the right represents a MeselsonStahl equilibr

The picture on the right represents a Meselson/Stahl equilibrium centrifugation experiment. The first tube labeled \"control\" shows where DNA that was composed of either 14-N or the heavy isotope 15-N would migrate to in the experiment. If the bacteria used in this experiment were allowed to replicate DNA for two generations, which tube shows results that would consistent with a conservative model of DNA replication? Tube A Tube B Tube C Tube D

Solution

Answer : option D ) Tube D

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Conservative replication.

, DNA replication results in one molecule that consists of both original DNA strands .

They are   identical to the original DNA molecule.

And

another DNA molecule that consists of two new strands .