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Which of the following situation(s) lead to fixation of an allele?

Which of the following situation(s) lead to fixation of an allele?

  • Model parameters: Starting frequency of allele A1: 0.5. Starting frequency of allele A2: 0.5. Fitness of genotype A1A1: 1. Fitness of genotype A1A2: 0.9. Fitness of genotype A2A2: 0.8. No mutation. Fraction of migrants each generation: 0.05. Frequency of A1 in source populations: 0.9. No Drift
  • Model parameters: Starting frequency of allele A1: 1.0. Starting frequency of allele A2: 0.0. Fitness of genotype A1A1: 0.7. Fitness of genotype A1A2: 0..9. Fitness of genotype A2A2: 1.0. Mutation rate from A1 to A2: 0.001. Mutation rate from A2 to A1: 0.001. No migration. No Drift.
  • Model parameters: Starting frequency of allele A1: 0.5. Starting frequency of allele A2: 0.5. No migration. Mutation rate from A1 to A2: 0.001. Mutation rate from A2 to A1: 0.001. Population size: 100
  • Model parameters: Starting frequency of allele A1: 0.3. Starting frequency of allele A2: 0.7. Fitness of genotype A1A1: 1.0. Fitness of genotype A1A2: 0.8. Fitness of genotype A2A2: 0.9. No Mutation. Fraction of migrants each generation: 0.01. Frequency of A1 in source populations: 0.0. No Drift.



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  1. Model parameters: Starting frequency of allele A1: 0.3. Starting frequency of allele A2: 0.7. Fitness of genotype A1A1: 1.0. Fitness of genotype A1A2: 0.8. Fitness of genotype A2A2: 0.9. No Mutation. Fraction of migrants each generation: 0.01. Frequency of A1 in source populations: 0.0. No Drift.