Phylogenesis Flashcards
0
Q
The goal of Taxonomy is to build phylogenies that reflects what?
A
Evolutionary Relationships
1
Q
What is Systematics?
A
The Science of Taxonomy
2
Q
What are the 3 kinds of phylogenies?
A
- Monophyletic Taxon
- Polyphyletic
- Paraphyletic
3
Q
What is seen in a Monophyletic Taxon Tree?
A
Consists of a common ancestor and all its descendants
4
Q
What are the properties of a Polyphyletic Tree?
A
Doesn’t contain the most recent common ancestor of all its members. Therefore, the trait its members have in common evolved separately in different places on the Phylogenetic tree.
5
Q
What are the properties of a Paraphyletic Tree?
A
Made of groups that contains the group’s most common ancestor, doesn’t contain all the descendants of that ancestor.
6
Q
What kinds of traits are used to build phylogenies?
A
- Homologous traits- those who similarity is due to shared ancestry
- Analogous Traits- caused by convergent evolution
