Question

show that dna replication is semiconservative?

Answer 1

Experiment carried out by Mathew Messelson and Franklin Stahl (1957-58) conclusively proved that in intact living E. coli cells that DNA is replicated by semi- conservative manner as postulated by Watson and Crick.

This heavy DNA molecule could be distinguished from the normal DNA by centrifugation in a cesium chloride (CsCl) density gradient. Being 15N not a radioisotopic isotope, it can be separated from 14N only based on densities.

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Answer 2

Step-by-step explanation:

The experiment done by Meselson and Stahl demonstrated that DNA replicated semi-conservatively, meaning that each strand in a DNA molecule serves as a template for synthesis of a new, complementary strand. Although Meselson and Stahl did their experiments in the bacterium E.