Answer
Meselson-Stahl differentiated between three DNA replication models using radioactive isotopes to analyze the path of nitrogen throughout the process.
Semi-conservative: all the DNA after the first generation was of intermediate density, but after the second generation there was a bond of intermediate DNA and a band of light DNA.
Conservative: there would have been no observed intermediate density of DNA
Dispersive: the DNA would all be intermediate for the first few generations, but the single intermediate band would progressively lose its weight.
Work Step by Step
Meselson-Stahl differentiated between three DNA replication models using radioactive isotopes to analyze the path of nitrogen throughout the process.
Semi-conservative: all the DNA after the first generation was of intermediate density, but after the second generation there was a bond of intermediate DNA and a band of light DNA.
Conservative: there would have been no observed intermediate density of DNA
Dispersive: the DNA would all be intermediate for the first few generations, but the single intermediate band would progressively lose its weight.
