DNA as a Genetic Material | Biology
In this article we will discuss about DNA as a genetic material. Transforming Principle: Frederick Griffith in 1928, carried out a series of experiments with Streptococcus pneumoniae (a bacterium that cause pneumonia). He observed that when these bacteria (Streptococcus pneumonia) are grown on a culture plate, some of them produce smooth, shiny colonies (S-type), whereas, the others produce rough colonies [...]