3.2 Evolutionary Genetics Flashcards
1
Q
Define Anagenesis
A
evolution taking place in a single group with the passage of time
2
Q
Define Cladogenesis
A
splitting of one lineage into two: new species arise
3
Q
What is the concept of a phylogentic tree
A
A graphical representation of the evolutionary relationships among a group of organisms
4
Q
What is allopatric speciation?
A
When a geographic barrier splits a population into two or more groups and prevents gene flow between the isolated groups
5
Q
Describe the molecular clock
A
Rate at which protein evolves is roughly constant over time. Change that protein has undergone can be used as a clock
6
Q
What are the rates of evolution
A
exon shuffling and gene duplication
