35. In the "RNA world" model for the origin of life,
the first protocells (probionts) relied on RNA, not
DNA, for information storage and transmission.
Which of the following could best be considered
evidence in support of the RNA world model?
(A) DNA is more stable than is RNA.
(B) Some RNA molecules in contemporary cells
have catalytic function.
(C) RNA is so complex in both structure and
function that it must have preceded DNA.
(D) RNA has secondary structure whereas DNA
does not.