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Phenotypic Distribution of Polygenic Traits and Allele Frequency for Introductory Biology. John Brady and Travis Curry Brebeuf Jesuit Preparatory School Indianapolis IN Website:. Phenotypic Distribution of Polygenic Traits. Phenotype- Observable Traits Examples: - PowerPoint PPT Presentation
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Phenotypic Distribution of Polygenic Traits and Allele Frequency for Introductory BiologyJohn Brady and Travis CurryBrebeuf Jesuit Preparatory SchoolIndianapolis IN
Website:
Phenotypic Distribution of Polygenic Traits•Phenotype- Observable Traits
•Examples:
•Polygenic Trait- phenotype is dependent on alleles at many different genes
•Examples:
Why Garlic Mustard?•Abundant on
campus
•Invasive species
•Relates to other content like populations, competition, biodiversity, evolution.
Environmental Literacy“…the capacity of an individual to act successfully in daily life on a
broad understanding of how people and societies relate to
each other and to natural systems, and how they might do
so sustainably.” http://www.fundee.org/facts/envlit/whatisenvlit.htm
20 40 60 80 100 120 140 160 1800
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Height of Garlic Mustard Plants Collected at Brebeuf Jesuit Preparatory School, Demonstrating Normal
Distribution
Series1Polynomial (Series1)
Height of Garlic Mustard Plants (cm)
Number of Garlic Mustard Plants
Oh Deer: Allele Frequency “Mate or Die”
Background•Project Wild “Oh Deer” activity : used to
demonstrate competition for scarce resources limiting populations: Project Wild
•Illustration of variation leading to differential fitness success in a wild population
•Just add some alleles and mating and it is easy to demonstrate directional and stabilizing selection in a population.
0 1 2 3 4 5 6 7 8 90
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Figure 1: Allelic frequency for the dominant "hobbling" mutation (N) and the recessive "normal" mutation (n)
over nine generations of "Mate or Die"
Frequency NFrequency n
Generations of "deer" Population
Alle
le F
requ
ency
Thank You!•John Brady: [email protected]
•Travis Curry: [email protected]
•Website: http://tcurry1977.edublogs.org/