The diameter of the nucleus is in the range of 1.75 fm (1.75 × 10⁻¹⁵m) for hydrogen.

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#Id: 9171

#Unit 11. Evolution and Behavior

Determining allelic frequencies at equilibrium

      

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#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

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#Id: 9173

#Unit 11. Evolution and Behavior

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#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.

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#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

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#Id: 9176

#Unit 11. Evolution and Behavior

Adaptation is a characteristic that enhances the survival or reproduction of organisms .

Adaptations have evolved by natural selection, which is the centerpiece of On the Origin of Species