2. In a population of twelve-spotted skimmers (Libellula pulchella), 27.6% of the individuals are recessive homozygotes for green spots. In a population of 924 individuals that is in Hardy-Weinberg Equilibrium, calculate the percentage AND number of dominant homozygotes and heterozygotes in this population.
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
Population genetics includes the study of genotypic and allelic frequencies within a population. The Hardy-Weinberg principle described the relationship between these two - genotypic and allelic frequencies with the help of a mathematical equation- p2+2pq+q2= 1. In this equation, p2 is the frequency of homozygous dominant genotype, q2 is the frequency of homozygous recessive genotype while the 2pq is the frequency of heterozygote. And p, q are the frequencies of dominant and recessive alleles respectively.
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