Lecture 4: Genetic Trees Flashcards
1
Q
Nomeclature
A
Kingdom, Phylum, Class, Order, Family, Genus, Species
2
Q
What is the Tree?
A
Lamarck:
effective way to think about descent from common ancestry
like a family tree
3
Q
Branches
A
connecting lines
4
Q
Root
A
the beginning
5
Q
Branching point
A
internal node
speciation
single branch into two new ones
6
Q
Polytomy
A
multiple branching
7
Q
Terminal nodes
A
Taxon
end point
tips
final categorization
8
Q
Basal Taxons
A
branching of a group from the root
ex cnidarians
9
Q
Sister Taxa
A
most closely related
polytomy
two groups from the same branch
