Sol Spiegelman and colleagues demonstrated natural selection in RNA replications because in their experiments
A) the researchers chose which RNA molecules to replicate.
B) RNA was self-replicating.
C) RNA molecules had differential survival and reproduction rates.
D) RNA was copied into DNA.

Question

Quizplus · Accepted Answer

Sol Spiegelman's experiments demonstrated natural selection in RNA replications because RNA molecules had differential survival and reproduction rates, indicating the presence of variation and selection. The researchers did not choose which RNA molecules to replicate, and RNA was self-replicating without the need for the researchers to copy it into DNA.

Sol Spiegelman and Colleagues Demonstrated Natural Selection in RNA Replications