This document discusses how to construct a shared derived character matrix and phylogenetic tree from 40 DNA sequences from 5 organisms. It asks whether all sequences would have the same character at positions where they share the same 40 base pairs, and how to handle derived characters. It also asks to map at least 4 phenotypic traits observed in the organisms onto the phylogenetic tree.

1. When doing this shared derived character matrix, would they all have 40 on the shared
because they all have 40 base pairs? Or how would you do that? On the derived, what do
you do? Thanks 40 DNA sequences: 30 E:
GTAATGCTACTGCAGGTATATCGTATGTCTAGCTGCCATG H:
GTAATGCTACTCGAGGTATATCGTATGTCTAGCTGCCATG B:
GAAATGCTACTCGAGGTATATCGTATGTCTAGCTGCCATG G:
GAAATGCTACTCGAGGTATATCGTATGTCTAGCTCCCATG C:
GTAATGCTACTGCAGGCATATCGTATGTCTAGCTGCCATG S:
GTAATGCTACTGCACGCATATCGTTTGTCTAGCTGCCATA 20 10 EL- Shared derived character
matrix raw a tree with this information. Map character changes on t ee as in the text figures
(a line through the interior branch dicating which nucleotide position changed there; i.e.: -
2) so map at least 4 phenotypic traits on the tree (including he e: # of chambers) that you
observe in these organisms.