module 11 Flashcards
Evolution
a change in the allele frequency of a population over time
population
unit of evolution
natural selection
process through which populations adapt and change
Variation, heritable, reproductive advantage
sexual selection
more likely to get banged
evolutionary fitness
how well a species is able to survive and reproduce, survival of the fit enough
sources of genetic variation
random mutations
independent assortment
crossing over
random fertilization
Patterns of evolution
divergent
convergent
divergent evolution
evolution in two different directions: reproduction in flowers
convergent evolution
two different points come together: shark n dolphin shape
evolutionary forces
Mutation, Natural selection, genetic drift, gene flow
mutation
change in allele frequency or crap
genetic drift
bottleneck, founder effect
bottleneck
no one lives except for select few, less genetic diversity
founder effect
part of group splits off, less gentic diversity
gene flow
migration between two seperate thingies
biological species concept
individuals capable of mating and producing offspring
genetic divergence
the accumulation of genetic differences between two populations; requires reproductive isolation.
pre or post zygotic
speciation
formation of a new species
allopatric and sympatric
allopatric speciation
geographic difference
sympatric speciation
in the same spot
