Describe Meselson and Stahl's experiment that was carried in 1958 on E.coli. Write the conclusion they arrived at after the experiment.
They grew E.coli, in . For many generations to get
incorporated into DNA, then the cells transformed into
, the extracted DNA is centrifuged in CsCl and measured to get their densities, DNA extracted from the after one generation (20 minutes), showed intermediate hybrid density, DNA extracted after two generations (40 minutes ) showed light DNA, hybrid DNA.
DNA replication is semi-conservative in nature.