A DNA molecule in E. coli is heavy and l...

A DNA molecule in E. coli is heavy and labelled with `N^(15)`. Iit is allowed to replicate in a medium containing `N^(14)`. After one generation of replication, the two daughter molecules will

be similar in density but differ from that of parent of DNA

differ in density as well as from that of the parent DNA

have same density as that of parent DNA

differ in density but resemble that parent DNA

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