A disagreement between scientists about how quickly mutations can occur would represent which type of conflict?

Secondary scientific controversy

Explanation:

Secondary scientific controversy is a kind of scientific controversy where scientists disagree about less important aspects of a scientific idea. These controversy might center around data interpretations, ideas worth pursuing and evidence based ideas.

An example is a disagreement between scientists about how quickly mutations can occur. This controversy focuses on an important aspect, mutation, but a change in scientists' acceptance of the rate at which mutation occurs doesn't change the fact that mutation occurs.