What is the time difference between Perth Australia and New York? Perth is 12 hours ahead of New York from the 2nd Sun. of March until the 1st Sun. of Nov. From the 1st Sun. of Nov. until the 2nd Sun. of March, Perth is 13 hrs. ahead of Ne â¦ w York.
Microevolution is the change in allele frequencies that occur over time within a population.igration into or out of a population can change allele frequencies, as well as introducing genetic variation into a population. Immigration may add new genetic material to the established gene pool of a population. Conversely, emigration may remove genetic material.
Allele frequency. Allele frequency, or gene frequency, is the proportion of a particular allele among all allele copies being considered. Formal definition: Allele or gene frequency is the percentage of all alleles at a given locus in a population gene pool represented by a particular allele.t is usually expressed as a percentage. In population genetics, allele frequencies are used to depict the amount of genetic diversity at the individual, population, and species level. It is also the relative proportion of all alleles of a gene that are of a designated type.