Natasha Paul and Gerald Joyce's Experiment Sought to Provide Evidence

Multiple Choice

Natasha Paul and Gerald Joyce's experiment sought to provide evidence that supported the theory of RNA world. To show evolutionary change, there had to be variation in RNA sequences, the ability to reproduce or replicate themselves, and fitness differences between sequences. This schematic of the results illustrates which specific requirement for evolutionary change that Paul and Joyce were studying? A


B

A) It illustrates that in certain conditions, RNA was capable of replicating.
B) It illustrates variation in RNA sequences.
C) It illustrates that natural selection did not occur in RNA world.
D) It illustrates fitness differences between the RNA sequences.