Meselson and Stahl experiment :
Grown E,coli in 15NH4Cl for many generations to get 15N incorporated into DNA, Then the cells are transferred into 14NH4Cl , The extracted DNA are centrifuged in CsCl and measured to get their densities, DNA extracted from the culture after one generation (20 minutes), showed intermediate hybrid density, DNA extracted after two generations (40 minutes) showed light DNA and hybrid DNA.
A correctly labelled diagrammatic representation in lieu of the above explanation of experiment to be considered.
