Avery, Macleod, and McCarty expanded on Griffith's experiment to prove that DNA is the hereditary molecule required for transformation. What treatment of the heat-killed SIII bacteria extract resulted in the mouse living?
A)destroying type SIII lipids and polysaccharides
B)destroying type SIII DNA with DNase
C)destroying type SIII RNA with RNase
D)destroying type SIII proteins with protease
E)the control group (null treatment), in which all components are intact

Question

Quizplus · Accepted Answer

If DNA is the hereditary molecule required for transformation, then destroying the type SIII DNA with DNase should prevent transformation and the mouse should live. The other choices would not have a significant impact on transformation because they do not target the DNA molecule. The control group is important for comparing the results of the experimental groups, but it does not provide information about the role of DNA in transformation.

Avery, Macleod, and McCarty Expanded on Griffith's Experiment to Prove