Long term trapping and monitoring studies have estimated that on average 3% of the populations move between habitats (farm to natural and vis versa) each generation. A new insecticide resistance allele (∆K) has begun to increase in frequency in the agricultural populations. A genotyping survey at this locus of 50 individuals in each population has revealed the following genotype counts: K/K K/∆K ∆K/∆K Agricultural field 32 16 2 Forest 48 2 0 4a. Based on the effects of migration alone, what will the frequency of ∆K be in the forest population in the next generation? 4b. If migration was acting in here without selection, what would the frequency of ΔK be in the agricultural population in the next generation? 4c. If the natural forest population was substantially larger than the agricultural population, how might that affect the evolution of ΔK by natural selection in the agricultural pest, and what is the term for this kind of effect?
Long term trapping and monitoring studies have estimated that on average 3% of the populations move between habitats (farm to natural and vis versa) each generation. A new insecticide resistance allele (∆K) has begun to increase in frequency in the agricultural populations. A genotyping survey at this locus of 50 individuals in each population has revealed the following genotype counts: K/K K/∆K ∆K/∆K Agricultural field 32 16 2 Forest 48 2 0 4a. Based on the effects of migration alone, what will the frequency of ∆K be in the forest population in the next generation? 4b. If migration was acting in here without selection, what would the frequency of ΔK be in the agricultural population in the next generation? 4c. If the natural forest population was substantially larger than the agricultural population, how might that affect the evolution of ΔK by natural selection in the agricultural pest, and what is the term for this kind of effect?
Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter12: Mendel, Genes, And Inheritance
Section: Chapter Questions
Problem 1ITD
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Entomologists at the New York State Department of Agriculture are interested in determining
the connection between pest insects infesting crop plants with populations of the same insect
infesting native plants in natural habitats. Long term trapping and monitoring studies have
estimated that on average 3% of the populations move between habitats (farm to natural and vis
versa) each generation. A new insecticide resistance allele (∆K) has begun to increase in
frequency in the agricultural populations. A genotyping survey at this locus of 50 individuals in
each population has revealed the following genotype counts:
the connection between pest insects infesting crop plants with populations of the same insect
infesting native plants in natural habitats. Long term trapping and monitoring studies have
estimated that on average 3% of the populations move between habitats (farm to natural and vis
versa) each generation. A new insecticide resistance allele (∆K) has begun to increase in
frequency in the agricultural populations. A genotyping survey at this locus of 50 individuals in
each population has revealed the following genotype counts:
| K/K | K/∆K | ∆K/∆K | |
| Agricultural field | 32 | 16 | 2 |
| Forest | 48 | 2 | 0 |
4a. Based on the effects of migration alone, what will the frequency of ∆K be in the forest
population in the next generation?
4b. If migration was acting in here without selection, what would the frequency of ΔK be in the
agricultural population in the next generation?
4c. If the natural forest population was substantially larger than the agricultural population, how
might that affect the evolution of ΔK by natural selection in the agricultural pest, and what is the
term for this kind of effect?
might that affect the evolution of ΔK by natural selection in the agricultural pest, and what is the
term for this kind of effect?
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