BIOL 111 Chapter 26 - Phylogeny

Phylogeny shows us what among organisms?

• Genes

• Evolutionary Relationships

• Evolutionary Differences

• DNA

Organisms are classified by these TWO characteristics

• Noises/Calls/Mating Displays

• Uncommon Traits

• DNA

• Common Traits

If we wanted to classify a species using the Linnaean Classification System, what are the levels/ranks in order?

Clades (B,C), (E,F), and (G,H) are considered

• Paraphyletic Group

• Polyphyletic Group

• Monophyletic Group

• Sister Taxa

What is at a Root Node on a phylogeny?

• The common ancestor (CA) that gave rise to all the lineages

• The most recent CA

• A species

• A lineage

What is at the Internal Nodes on a phylogeny?

• CA that gave rise to all the lineages

• A lineage

• Most recent CA

• A species

What do the branches represent on a phylogeny?

• Most recent CA

• CA that gave rise to all the lineages

• A species

• Lineages

What exists at the Terminal Nodes on a phylogeny?

• Species

• A lineage

• Most recent CA

• CA that gave rise to all the lineages

What type of group is boxed in blue?

What type of group is boxed in red?