Question

What does a phylogenetic trees with proportional branch lengths indicate?

Answer 1

The proportional branches of phylogenetic trees indicate the change of characters.

Explanation:

The phylogenetic trees indicate the ancestral history of the related organisms. The radiating branches of he phylogenetic tree indicate a different line of evolution from the origina stock. Propotion of these radiating branches in a phylogenetic tree indicates the amount of characters that share. Thank you