Question

the experimental proof for semiconservation replication of dna was first shown in a

Answer 1

bacterium ... E. coli

Answer 2

ANSWER:

The experimental proof for 'semi-conservative replication of DNA' was first shown in the experiment on 'E.coli Bacteria'. The experiment was conducted by 'Matthew Meselson' and 'Franklin Stahl' in 1958.

EXPLANATION:

In the experiment, the bacteria were exposed to a heavy isotope. This isotope was of nitrogen. The experiment was carried on for almost 14 generations.

The experiment proved that DNA of bacteria had 14N nitrogen as well as isotope from the medium also. This proved the semi-conservative replication theory.