Author Question: In an insect species, survival in agricultural fields regularly sprayed with insecticide is ... (Read 139 times)

Medesa · **on:** Jan 12, 2022

Question 1

In a theoretical population where f (A1) = 0.95 and f (A2) = 0.05, µ = 1 × 10-6, and v = 1 × 10-7, what is Δq?
◦ 5.00 × 10-9
◦ 9.45 × 10-7
◦ 9.50 × 10-7
◦ 9.55 × 10-7
◦ 5.26 × 10-3

Question 2

In an insect species, survival in agricultural fields regularly sprayed with insecticide is determined by the genotype for a detoxification enzyme encoded by a gene with two alleles, A and D. Which of the following statements is consistent with the data?

Genotype	Relative Fitness
AA	1.00
AD	0.70
DD	0.05

◦ This will likely lead to the frequency of the A allele being eliminated (f=0.0) and the D allele being fixed (f=1.0).
◦ Eventually, natural selection should lead to a balanced polymorphism.
◦ The D allele frequency will change faster as it gets less frequent.
◦ Both the A and D alleles should reach stable equilibrium frequencies that are maintained in a steady state.
◦ Directional selection will increase the frequency of the A allele at a pace determined by the intensity of natural selection.

blazinlyss · **Reply #1 on:** Jan 12, 2022

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