Chapter 7
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What does polygenic
Multiple genes for 1 phenotype
What is pleiotropic
One gene = multiple phenotype
What is a gene pool
All alleles in a population
What is crossing over
When chromosomes swap genetic material.
What is substitution
When nucleotides get swapped
What is insertion
When nucleotides get inserted into a genome.
What is deletion
When nucleotides get removed.
What is genetic drift.
When random chance events removes alleles from a population.
What is a bottleneck evolution
When individuals get removed to only a few individuals.
what is the founder effect
When only a few individuals end up in a new place.
What is non random Evolution
Natural selection
How does natural selection work.
When selective pressures promote higher fitness of traits.
What is stabilizing selection
Whent the average phenotype is selected for.
What is disruptive selection
When both extremes are selected for.
What is directional selection?
When one extreme is selected for.
What is microevolution.
Change in alleles of a population
What is Macroevolution
When ther is a change in a species.
What is speciation
Evolution of a new species. (Cannot interbreed)
What is allopatric speciation
Speciation that happens from A different place of origin.
what is Sympatric Speciation
Speciation from the same place of origin