A polytomy on a phylogenetic tree represents

Question

Quizplus · Accepted Answer

A polytomy represents a situation where there is insufficient data to determine lineage relationships, meaning that multiple lineages diverged simultaneously from a common ancestor. It does not represent sister taxa or a lineage that diverges from all other lineages, but rather an unresolved relationship between multiple lineages. The most recent common ancestor may be present in a polytomy, but it is not the defining characteristic of it.

A Polytomy on a Phylogenetic Tree Represents