lab 2 : phylogenetics Flashcards
1
Q
apomorphy
A
specialized trait or character unique to a species
2
Q
plesiomorphy
A
the most ancestral trait on the cladogram
3
Q
synapomorphy
A
derived and shared characteristic
4
Q
autapomorphy
A
distinctive feature, derived traitsym
5
Q
symplesiomORPHY
A
ancestral trait
6
Q
clade
A
phyletic grouping
7
Q
analogous
A
no common ancestor, but convergent evolution gave same function
8
Q
monophyletic clade
A
only ancestrally related species
9
Q
paraphyletic
A
1 ancestor and its lineage. but excludes subgroup
10
Q
polyphyletic
A
more than one ancestor
11
Q
what is convergent evolution
A
when traits are developed in different species that dont share a common ancestor under the same conditions. synapomorphic traits will have a common ancestor, analogous does not.
12
Q
what does a node represent?
A
hypothetical ancestor
