Whereas old dependency theory was Marxist in presentation, but nationalist in orientation, seeking to combine a theory of class struggle with a nationalist âthird worldistâ ideology, the new dependency theory is institutionalist in its analysis and political orientation.
Griffith concluded that the type II-R had been transformed into the lethal III-S strain by a transforming principle that was somehow part of the dead III-S strain bacteria. Today, we know that the transforming principle Griffith observed was the DNA of the III-s strain bacteria. While the bacteria had been killed, the DNA had survived the heating process and was taken up by the II-R strain bacteria. The III-S strain DNA contains the genes that form the protective polysaccharide capsule.
Streptococcus pyogenes. Introduction. Streptococcus pyogenes is a gram positive bacteria. It is a cocci or sphere shaped bacterium that does not produce spores.It reproduces by asexual reproduction along a central axis creating either pairs of bacterium or long chains depending on culture media.treptococcus pyogenes. Introduction. Streptococcus pyogenes is a gram positive bacteria. It is a cocci or sphere shaped bacterium that does not produce spores.