Trait : meaning of TRAIT in Hindi - Definition and Translation.
That left the scientists with only two options: either DNA replicated semiconservatively, as Watson and Crick had predicted, or it replicated dispersively. To differentiate between the two, Meselson and Stahl had to let the cells divide again and then sample the DNA after a second round of replication.
Many people believe that American biologist James Watson and English physicist Francis Crick discovered DNA in the 1950s. In reality, this is not the case.Rather, DNA was first identified in the late 1860s by Swiss chemist Friedrich Miescher.n fact, Watson and Crick were worried that they would be scooped by Pauling, who proposed a different model for the three-dimensional structure of DNA just months before they did. In the end, however, Pauling's prediction was incorrect.