Question

Because there is no indication of which node represents an ancestor, there is no direction of an evolutionary path in an unrooted tree.

(a) True

(b) False

This question was posed to me in class test.

This is a very interesting question from Phylogenetics Basics topic in division Molecular Phylogenetics of Bioinformatics

Answer 1

The correct choice is (a) True

The best explanation: To define the direction of an evolution path, a tree must be rooted. In a rooted tree, all the sequences under study have a common ancestor or root node from which a unique evolutionary path leads to all other nodes.