Home Biology Molecular Basis of Inheritance All Topic Question For Revision Test A DNA molecule of Escherichia coli is heavy …
Biology Molecular Basis of Inheritance All Topic Question For Revision Test Single Correct MCQ
Published on: August 14, 2026

A DNA molecule of Escherichia coli is heavy (full labelled with 15 N) and is allowed to duplicate in a medium contain 14 N. In first generation, the two daughter DNA molecules.

A
Have same density but do not resemble their parent DNA
B
Have different densities but resemble their parent DNA
C
Have different densities and also do not resemble the parent DNA
D
Same in density and resemble their parent DNA

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