What is the difference between cladograms, phylograms, and chronograms?
A) the rooting of the trees
B) how polyphyletic and paraphyletic groups are determined
C) what branch lengths represent
D) the number of homologous traits

Question

Quizplus · Accepted Answer

Cladograms show only branching relationships, while phylograms show branching relationships and relative branch lengths. Chronograms are similar to phylograms but also include information about the timing of divergence events through the use of calibrated branch lengths. Therefore, the key difference between the three is what branch lengths represent.

A) is not entirely accurate as all three types of trees can be rooted or unrooted.
B) is not a defining characteristic of the three types of trees.
D) is not a defining characteristic of the three types of trees.

What Is the Difference Between Cladograms, Phylograms, and Chronograms