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The method developed by  Meselson  and  Stahl to separate heavy DNA with N’s from DNA N’4, for providing evidence for semi - conservative  replication of DNA is

Option: 1

Ion exchange chromatography


Option: 2

Density gradient centrifugation


Option: 3

Isopycnic centrifugation

 


Option: 4

Gel filtration


Answers (1)

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As we learned

Experiments done by meselsons and stahl -

They transferred the E. coli bateria Cells into a medium with normal 14 NH_{4}Cl and took samples and extracted DNA .various samples were separated independently on CsSl gradients to measure.the deities of DNA.

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