In a population of finches undergoing roughly directional selection on the gene "A," the fitness of A1A1 individuals is 0.8, A1A2 individuals is 1, and A2A2 individuals is 1. The initial frequency of each allele is 0.5. What will be the new frequency of A1 after one generation of selection? (3rd decimal place is fine)
Evolutionary Genetics
Evolution is known as continuous changes that occur to adjust organisms in their changing environment over many generations. Various theories have been proposed to illustrate the origin of life and organic evolution. The most accepted one is the theory of natural selection by Charles Darwin. According to his postulate, organisms undergo a struggle for existence due to overproduction. To survive in nature, they acquire variations. The inheritable variations are selected by nature, and it leads to the survival of the fittest.
Phenotype Frequency
The majority of populations have a certain degree of variation in their genetic pools. Scientists can predict the genetic variation happening over time by measuring the amount of genetic variation in a population and these predictions assist them in gaining important insights into the processes that allow organisms to adapt to the environment or to develop into new species over generations. This process is referred to as the process of evolution.
Hardy Weinberg Equilibrium
The frequencies of allele and genotype were maintained constant from one generation to another due to the absence of other evolutionary forces. It is otherwise called the Hardy Weinberg principle the field of population genetics.
Hardy Weinberg Equilibrium (HWE) states that when disturbing factors (mutations, random mating, genetic drift, and gene pool) are absent in a population that the allelic frequencies for the population remain constant and so the population does not evolve.
according to Hardy Weinberg's principle,
p + q = 1 and
p2 + 2pq + q2 = 1
Where,
p refers to the frequency of the homozygous dominant allele
q refers to the frequency of homozygous recessive allele
2pq refers to frequencies of heterozygotes
Step by step
Solved in 5 steps
