Biology, 25.03.2020 00:07, FombafTejanjr3923

19. Suppose that some cells are grown in culture in the presence of radioactive nucleotides for many generations, so that both strands of every DNA molecule are radioactive. The cells are then harvested and placed in new medium with nucleotides that are not radioactive, so that newly synthesized DNA will not be radioactive. What proportion of DNA molecules will be radioactive after two rounds of replication

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19. Suppose that some cells are grown in culture in the presence of radioactive nucleotides for many...