Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson

تمرين 10

The work by Griffith provided the first indication that DNA was the genetic material. Review the four experiments outlined in figure 14.1. Predict the likely outcome for the following variations on this classic research.
a. Heat-killed pathogenic and heat-killed nonpathogenic
b. Heat-killed pathogenic and live nonpathogenic in the presence of an enzyme that digests proteins (proteases)
c. Heat-killed pathogenic and live nonpathogenic in the presence of an enzyme that digests DNA (endonuclease)