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

Question

Quizplus · Accepted Answer

Spiegelman and colleagues demonstrated natural selection in RNA replications because they observed that RNA molecules with certain characteristics were better able to survive and replicate, while others were not. This is a classic example of natural selection acting on a population of RNA molecules, leading to differential reproductive success and changes in the population over time. Choices B, C, and D are all incorrect because they do not accurately describe the key feature of the study that demonstrated natural selection.

Spiegelman and Colleagues Demonstrated Natural Selection in RNA Replications Because