Neco 2018 Biology Question 32

In a population of beetles, the frequency of the allele for green colour (A) is \(p_{0}=0.6\) and the allele for brown colour (a) is \(q_{0}=0.4\). Green beetles have a 20% higher survival probability than brown beetles because of predation. Assume that both homozygous (AA) and heterozygous (Aa) beetles display the green phenotype and have a relative fitness of 1.2, while brown homozygotes (aa) have a fitness of 1.0.\n\n(a) After one round of selection, calculate the new allele frequency \(p'\) of allele A.\n(b) Assuming random mating after selection, what proportion of heterozygotes (Aa) will be present in the next generation? Express your answer as a decimal to two significant figures.