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Genetics Lesson 2

Genetics Lesson 2. Hardy Weinberg. Hardy Weinberg. http://nhscience.lonestar.edu/biol/hwe.html. Genes, Population and Alleles. Is there a relationship?. Gene Pool and Allelic Frequencies. Gene Pool = Allelic Frequency = How can we use this information?. Hardy Weinberg.

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Genetics Lesson 2

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  1. Genetics Lesson 2 Hardy Weinberg

  2. Hardy Weinberg http://nhscience.lonestar.edu/biol/hwe.html

  3. Genes, Population and Alleles • Is there a relationship?

  4. Gene Pool and Allelic Frequencies • Gene Pool = • Allelic Frequency = • How can we use this information?

  5. Hardy Weinberg • Calculate Allelic frequencies in a given population • If we were to calculate the allelic frequencies what would we need to assume?

  6. Hardy Weinberg- Assumptions • Large population • No migration • No evolution hence no mutation • No selection pressures • No species selection • Allopatric Speciation does not occur

  7. Possibility of Alleles = • Total = 1 • So dominant and recessive alleles =1

  8. Hardy Weinberg • Recessive phenotypes need both RECESSIVE alleles • Homozygous dominant phenotypes need both DOMINANT alleles • Heterozygotes need one of each allele

  9. Hardy Weinberg Examples • Page 127

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