<span>i think Comparative morphology
i could be wrong tho</span>
Answer:
Could RNA have provided a template for DNA assembly, thereby enabling a more stable molecule that is replicated more accurately?
Explanation:
Based on the information provided within the question it can be said that the question that would best bring about investigation onto this hypothesis would be "Could RNA have provided a template for DNA assembly, thereby enabling a more stable molecule that is replicated more accurately?" as it brings up the most important topic, of how could RNA have developed into DNA?
A dependent variable is a value that depends on another, so what relies on the other! :)