Evolution
change in the geneticmakeupof a populationovertimedescentw modificatio
CharlesDarwin proposed theideaofnaturalselectiontoexplain evolution
Naturalselection process inwhich individualsthathavecertaintraitstendto survive
andreproduce at higherratesthanotherindividualsbecauseofthosetraits
actsonpopulations not individuals
Artificial Selection selectivebreeding ofdomesticatedplants andanimals toencourag
heoccurance ofdesirable traits
Evolutionisdriven
byMutations flow NaturalSelection
GeneticDriftMigration Gene
Mutations change in DNA sequence
GeneticDrift chance eventthatcause a change inallelefrequencyfromone
gen
tothenextMostsignificant insmall populations
reduced
Bettes
the teatsftp.en alarge population is drastically by a
what Gene large
Toynationwith
Ythanten Magestation
GeneFlow Transferofallelesintooroutof apopulationduetofertile individuals or
gametes
ModesofNatural Selection
Directional Selection Stabilizing Selection DisruptiveSelection
r
oneextremephenotype
r
selectiontowardsthemean
M
selection against mean
Sexualselection
typeofnaturalselection thatexplains why many species have
unique showytraits
population genetics
opulation groupofindividualsofthesamespecies thatlive inthesameareaandinterbree
oproducefertile offspring
GenePool apopulation's genetic makeup allelespresent in thepopulation
allele frequencies changeovertime
change in the geneticmakeupof a populationovertimedescentw modificatio
CharlesDarwin proposed theideaofnaturalselectiontoexplain evolution
Naturalselection process inwhich individualsthathavecertaintraitstendto survive
andreproduce at higherratesthanotherindividualsbecauseofthosetraits
actsonpopulations not individuals
Artificial Selection selectivebreeding ofdomesticatedplants andanimals toencourag
heoccurance ofdesirable traits
Evolutionisdriven
byMutations flow NaturalSelection
GeneticDriftMigration Gene
Mutations change in DNA sequence
GeneticDrift chance eventthatcause a change inallelefrequencyfromone
gen
tothenextMostsignificant insmall populations
reduced
Bettes
the teatsftp.en alarge population is drastically by a
what Gene large
Toynationwith
Ythanten Magestation
GeneFlow Transferofallelesintooroutof apopulationduetofertile individuals or
gametes
ModesofNatural Selection
Directional Selection Stabilizing Selection DisruptiveSelection
r
oneextremephenotype
r
selectiontowardsthemean
M
selection against mean
Sexualselection
typeofnaturalselection thatexplains why many species have
unique showytraits
population genetics
opulation groupofindividualsofthesamespecies thatlive inthesameareaandinterbree
oproducefertile offspring
GenePool apopulation's genetic makeup allelespresent in thepopulation
allele frequencies changeovertime
