Imprinting

Imprinting, in psychobiology, a form of learning in which a very young animal fixes its attention on the first object with which it has visual,  auditory, or tactile experience and there after follows that object

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The overall change in allelic frequency is a balance between the opposing forces of forward mutation and reverse  mutation:

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#XL - T Zoology

Determining allelic frequencies at equilibrium

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#XL - T Zoology

Migration

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

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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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N1=2000(source)  G1=0.8   G2=0.2

N2=5000(recipient)  G1=0.3   G2=0.7

100 individual migrate N1 to N2

Alleles frequency in recipient?