Question

Problem ***. A population of jewel beetles has a striped and plain phenotype. Two stripes is the recessive phenotype. Plain is the dominant phenotype. However, heterozygote individuals an intermediate phenotype bearing one stripe. Jewel beetles are abundant on islands. On one particular island an invasive rodent has been introduced which preferentially preys on striped beetles. In a population sof 26,760 beetles. Approximately 18,200 beetles are two striped.

1. Calculate the genotypic and allele frequencies.
2. If the introduced rodent consumes 70% of the two striped beetles, 45% of the single striped beetles, and 12% of the plain beetles. What is the absolute fitness of each genotype? What is the relative fitness of each genotype using the plain beetles as your fitness reference?
3. Calculate w-bar (average) fitness for the population.
4. Calculate what the allele and genotypic frequencies will be in the next generation after rodent predation.

Answer 1