Final answer:
The replication of DNA ensures accurate transmission of genetic information. Meselson and Stahl's experiment confirmed the semi-conservative nature of DNA replication.
Step-by-step explanation:
The replication of DNA is important because it ensures that genetic information is accurately passed down from one generation to the next. It was important to continue their experiment to at least two rounds of replication after isotopic labeling of the starting DNA with ¹5N.
By replicating the DNA, they were able to demonstrate that each new DNA strand is composed of one original template strand and one newly synthesized strand. This was crucial in establishing a model for DNA replication, which is the process by which cells duplicate their DNA before cell division.
Replicating the findings of this study is important for other researchers because it helps to validate the results and confirm their accuracy. It also allows for further experimentation and exploration of related concepts to build upon existing knowledge.