The reprocibility is one odf the most important part of the scientific method.
If the trial or investigation is well planned and conducted, the results could be reproduced by any investigator, researching on any place with any sample, as long as the new trial is conducted with the same parameters.
If the results are not reproducible, the investigation has a bad thecnic and is not usefull.
Replication is the practice of performing a study using the same methodology as one study performed before. A common example of replication studies is to conduct a research in a place and then conduct the same research in other place. Dr. Kong performing one more time the study of correlating smoking and risk of high blood pressure but in a different city, is a clear example of replication study.
DNA replication is the process by which DNA makes a copy of itself during cell division. The separation of the two single strands of DNA creates a 'Y' shape called a replication 'fork'. The two separated strands will act as templates for making the new strands of DNA.