In the last lab, you used the PHYLIP program to create unrooted phylogenetic trees. Why was it important to "root" the phylogenetic tree after you created it?
A. Unrooted trees are not necessary to the organisms you are trying to study
B. In the unrooted trees the outgroup might not branch off prior to the common ancestor of the organisms under study
C. In the unrooted trees the outgroup is not connected to the rest of the tree by a common ancestor
D. Unrooted trees do not follow the Law of Parsimony
Ans: B. In the unrooted trees the outgroup might not branch off prior to the common ancestor of the organisms under study
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