# Thinking about balancing selection in a two allele system, what would the equilibrium q frequency be when h is equal to -0.20?

Equilibrium q Frequency in a Two Allele System when h is -0.20

Balancing choice is a kind of pure choice by which two or extra alleles of a gene are maintained in a inhabitants regardless of their disadvantageous results. It’s typically seen in genetic techniques with two alleles and is characterised by heterozygote benefit, the place the health of the heterozygote is greater than that of both homozygote (Lehner, 2016). Balancing choice maintains genetic variation inside populations and can lead to a steady frequency of the 2 alleles. In a two allele system, the equilibrium q frequency is the frequency of the “q” allele (the much less match allele) within the inhabitants when heterozygote benefit is current. The equilibrium q frequency will be calculated utilizing the equation q = (1 + h)/2, the place h is the heterozygote benefit (Futuyma & Slatkin, 2017). On this equation, if h is the same as -0.20, then q = (-1+-0.20)/2 = -0.60, which means that the equilibrium q frequency is 60% of the inhabitants.
In conclusion, the equilibrium q frequency in a two allele system when h is the same as -0.20 is -0.60, or 60% of the inhabitants.