Radiation- Several species arise from a common ancestor over a short time

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#Id: 9170

#Unit 11. Evolution and Behavior

The overall change in allelic frequency

TLS Online TPP Program

#Id: 9171

#Unit 11. Evolution and Behavior

Determining allelic frequencies at equilibrium

      

TLS Online TPP Program

#Id: 9172

#Unit 11. Evolution and Behavior

Migration

Change in the allelic frequencies is the influx of genes from other populations, commonly called migration or gene flow

TLS Online TPP Program

#Id: 9173

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 9174

#Unit 11. Evolution and Behavior

The overall effect of migration is twofold: 

1.it prevents populations from becoming genetically different from one another, 

2.it increases genetic variation within populations.

TLS Online TPP Program

#Id: 9175

#Unit 11. Evolution and Behavior

Amount of change in allelic frequency due to migration

m= proportional of migratory individual in  recipient population

qI – frequency of allele in source population  

qII – frequency of allele in recipient population