Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
evolution
| Term | Definition |
|---|---|
| nonrandom mating | when a selection of mates on the basis of a trait or group of traits |
| assertive mating | a type of nonrandom mating which partners resemble each other |
| inbreeding | mating between genetically relative individuals |
| sexual selection | selection by the opposite sex or competition among same sex |
| natural selection | facilities evolution by increasing or decreasing the odds that the organism successfully reproduces |
| Darwinian Fitness | the contribution an individual make to the gene pool of the next generation relative to others |
| relative fitness | the contribution of a genotype to the next generation relative to other genotype |
| natural selection ways | changes allele frequency in three ways (stabilizing,directional,diversifying) |
| stabilizing selection | a type of natural selection that minimizes extreme phenotype |
| directional selection | a type of natural selection that shifts the phenotype towards one extreme |
| diversifying selection | a type of natural selection that favors extreme phenotypes |
| photosynthesis equation | C6H12O6+O2 |
| gene pool | all of the genes present in a population |
| gene flow | the transfer of alleles between population |
| species | a specific kind of organism |
| specieation | a type of specieation caused by geographic isolation |
| geographic isolation | when two species are separated |
| geographic barriers | reason why the species are separated |
| sympatric specieation | a type of specieation caused by reproductive isolation |
| zygote | a fertilized egg |
| reproductive isolation | genetic changes cause two populations to become unable to mate with each other even when they aren't geographically isolated |
| prezygotic barriers | a kind of reproductive barrier that keep organisms from mating with eachother and forming visible zygotes |
| hybrid | the product of breeding by organism of different species (horse+donkey=mule) |
| splinter population | a small group that is isolated from the parent population |
| adaptive radiation | the evolution of different species from a common ancestor |
| polyploidy | an accident in cell division resulting in an organism with more than two sets of chromosomes |
| hybrid zone | a region where two populations come into contact after geographic isolation and interbred where their ranges overlap (stable) (in between) |
| punctuation equilibrium | a theory suggesting that speciation occurs in rapid bursts followed by long period with little change |
Created by:
12shann_jasso
Popular Biology sets