Oswald Avery and colleagues strengthened scientific support that DNA was the transforming factor by replicating the Griffith experiment with some important differences in experimental design.They found that the enzyme ______________ was effective at destroying the transforming capacity of S strain biomolecules.
A)protease (protein destruction)
B)RNase (RNA destruction)
C)DNase (DNA destruction)
D)polysaccharide-destroying enzymes
E)lipase (lipid destruction)

Question

Quizplus · Accepted Answer

Avery and colleagues used DNase, an enzyme that specifically breaks down DNA, to show that the transforming factor present in the S strain bacteria was indeed DNA. If the transforming ability was destroyed by DNase, but not by other enzymes such as protease or RNase, it meant that DNA was the key component responsible for transformation.

Oswald Avery and Colleagues Strengthened Scientific Support That DNA Was