Experiments designed to identify the transforming substance were based on
A) purifying each of the macromolecule types from a cell-free extract.
B) removing each of the macromolecules from a cell, then testing its type.
C) selectively destroying the different macromolecules in a cell-free extract.
D) adding different macromolecules from a cell.
E) straining out the different macromolecules in a cell-free extract.

Question

Quizplus · Accepted Answer

The correct approach involved selectively destroying the different macromolecules (such as DNA, RNA, proteins) in a cell-free extract to identify which one was responsible for transformation, as demonstrated in experiments by Oswald Avery and his colleagues.

Experiments Designed to Identify the Transforming Substance Were Based on