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

TLS Online TPP Program

#Id: 9214

#Section 3: Genetics, Cellular and Molecular Biology

Effective population size(Ne)

Effective number of breeding adults in a population.

TLS Online TPP Program

#Id: 9215

#Section 3: Genetics, Cellular and Molecular Biology

Some factor determine Ne

1.Sex ratio.

2.Variation between individual in reproduction success.

3.Fluctuation in population size.

4.The age structure of the population.

5.Mating is random.

TLS Online TPP Program

#Id: 9216

#Section 3: Genetics, Cellular and Molecular Biology

Ne = Male + Female  (when both are equal)

Ne = 4 × n(male) × n(female)/n(male)+n(female) 

(When both unequal Ne is smaller than then sum of both)

TLS Online TPP Program

#Id: 8950

#Section 3: Genetics, Cellular and Molecular Biology

TLS Online TPP Program

#Id: 8951

#Section 3: Genetics, Cellular and Molecular Biology

TLS Online TPP Program

#Id: 2229

#Section 3: Genetics, Cellular and Molecular Biology

The Birth of a Gene - Duplication is the most common way that new genes arise in eukaryotes.