Lecture 5 Flashcards

1
Q

Three Domains

A

Bacteria
Archaea
Eukarya

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1
Q

Taxa/Taxon

A

Named group in hierarchical classification.

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2
Q

Phylogenetic Tree

A

represents an evidence-based guess about evolutionary relationships

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3
Q

Node

A

Branch point
(last common ancestor)

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4
Q

Extant Taxa

A

tips of tree

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5
Q

Sister taxa

A

immediate common ancestor not shared by any other

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6
Q

extinct taxa

A

all organisms no longer around today

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7
Q

Proportional tree type 1

A

Uses time

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8
Q

Proportional tree type 2

A

Genetic change
Requires DNA sequence.

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9
Q

Cladistics

A

Analysis of all homologous characters among groups to figure out evolutionary relationships.

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