Adaptation Flashcards
1
Q
Adaptationism
A
View that many or all biological traits are adaptations. NOT TRUE ALL THE TIME
2
Q
To be adaptive
A
A trait must increase the lifetime reproductive success of organisms in a pop
3
Q
Traits may not be adaptive due to 7 things
A
- mutation
- genetic drift
- migration
- heterozygote advantage
- linkage
- genetic correlation
- evolutionary and developmental constraints
4
Q
To demonstrate a trait represents an adaptation and not a spandrel we need
A
- all possible alternative reasons tested
- fitness advantage should be demonstrated
5
Q
Adaptation is studied in 4 ways
A
Experimentation
Observational studies
Comparative method
Genomics
6
Q
Spandrel
A
Phenotypic characteristic that is byproduct of evolution of another characteristic rather than being due to adaptation (ex colour of our blood is due to chemistry, not because red is the best)
