Evolution & Gene PoolsA single organism does not evolveOne
animal has the genes it was born with and they do not
changePopulations evolvePopulations are multiple animals of a
single speciesGenetic variation is studied in populationsAll the
genes (and alleles) in a population are called a gene pool
Gene PoolWhat is the gene pool for skin color in this population
of frogs?Gene Pool:GreenPurpleRed
Relative FrequencyRelative Frequency is the number of times each
trait or allele in a gene pool appears relative to the total
populationWhat are the Relative Frequencies for the skin color
trait in this gene pool?Relative Frequency:Green 12/15Purple
2/15Red 1/15
Gene Pool: fur color in a population of miceSample Population48%
heterozygous black36% homozygous brown16% homozygous blackFrequency
of Allelesallele for brown furallele for black furallele for brown
furallele for black furWhat is the relative frequency of the brown
and black hair alleles?Brown: 30/50Black: 20/50
Darwin AwardsThanks for removing your genes from the gene
poolhttp://darwinawardsdvd.com/
