1 Explain and discuss effect of mutation in allele frequency

1. Explain and discuss effect of mutation in allele frequency in one-way mutation and two way mutation, respectively.

Solution

ALLELE FREQUENCY IS ALSO KNOWN A GENE FREQUENCY. IT IS THE FREQUENCY OF AN ALLELE AT A POPULATION LOCUS IN A POPULATION. IT IS EXPRESSED IN TERMS OF FRACTION OR PERCENTAGE. IN A NATURAL POPULATION, NATUAL SELECTION AND MUTATION ALONG WITH GENE FLOW CAN CHANGE ALLELIC FREQUENCIES. MUTATION IS THAT SUDDEN CHANGE WHICH CAN CHANGE THE FREQUENCIES OF ALLELES LEADING TO FORMATION OF NEW ALLELES.IN ONE WAY MUTATION THE ALLELE FREQUENCY CHANGE WITH GENERATION. EQUATION FOR ONE WAY MUTATION IS Pt=P0e-^{Ut ,} WHERE u IS MUTATION RATE. IN ONE WAY MUTATION THE ALLELE FRQUENCY OF ONLY ONE ALLELE CHANGE WITH NUMBER OF GENERATIONS. IN TWO WAY MUTATION BOTH THE ALLELE ARE INDEPENDENT FOR MUTATION AND THE RATE OF MUTATION IS NOT ZERO. THEY SHOW REVERSE AND FORWARD MUTATION RATE IN TWO WAY MUTATION. IT TAKES PLACE IN INFINITE POPULATION.