Question

7. What is the basal taxon in the phylogenetic tree you drew? 8. Which branch point represents the last common ancestor of all species in the phylogenetic tree you drew? if they 9. Would your drawn phylogenetic tree differ if characters arose more than once or disappeared? Explain. UT

Answer 1

tail Horns E Dorsal fin Spots claw fore arms claw spiked Hh 5 I - tail G. teeth both In this phylogenetic tree, taxon A is the basal taxon. Basal taxon means a lieage that evolved early from the root and remains unbranched. a

In this picture, I which is the last I of all species in I circle a point o common ancester the phylogenetic tree.