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Genetics and Eye Color Distribution in a Small Population

Explore the genotype and phenotype frequencies for blue and brown eyes in a population of 10 individuals. Understand allele distribution and possible gametes in the gene pool.

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Genetics and Eye Color Distribution in a Small Population

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  1. Phenotype frequency: 30% blue eyes (or 0.3) 70% brown eyes (or 0.7) Population: 10 individuals

  2. = Bb = bb = BB Genotype frequency: f(bb) = 30% (or 0.3) f(Bb) = 50% (or 0.5) F(BB) = 20% (or 0.2) Phenotype frequency: 30% blue eyes (or 0.3) 70% brown eyes (or 0.7) Population 10 individuals

  3. b b b b b b B b B b B b B b B b B B B B = bb = Bb = BB Number of alleles: b = 11 B = 9 Genotype frequency: f(bb) = 30% (or 0.3) f(Bb) = 50% (or 0.5) f(BB) = 20% (or 0.2) Population 10 individuals

  4. b b b b b b b b b B B B b b B B B B B B Population 10 individuals b b b b b b Genotype frequency: f(bb) = 30% (or 0.3) f(Bb) = 50% (or 0.5) f(BB) = 20% (or 0.2) B b B b B b B b B b Number of alleles: b = 11 B = 9 B B B B Allele frequency: f(b) = 11/20 = 0.55 f(B) = 9/20 = 0.45

  5. b b b b b b b b b B B B b b B B B B B B = Gene pool of a population

  6. b b b b b b B b B b B b B b B b B B B B = bb = Bb = BB Possible gametes of each individual

  7. b b b b b b b b b B B B b b B B B B B B = Possible gametes in the population

  8. b b b b b b b b b B B B b b B B B B B B Population 10 individuals b b b b b b Genotype frequency: f(bb) = 30% (or 0.3) f(Bb) = 50% (or 0.5) f(BB) = 20% (or 0.2) B b B b B b B b B b Number of alleles: b = 11 B = 9 B B B B Allele frequency: f(b) = 11/20 = 0.55 f(B) = 9/20 = 0.45

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