8/27/2021
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Hardy-Weinberg - 210827
Thursday, August 26, 2021 11:57 PM
Warmup: What do you remember about the Hardy-Weinberg equilibrium? What are examples of
nonheritable variation? Examples of sources of variation? Does genetic variation guarantee evolution?
Why or why not?
Activity: Hardy-Weinberg
Predict the outcomes if the following conditions of the Hardy-Weinberg equilibrium do not hold.
Condition
Consequence if condition does not hold
1. No mutations
2. Random mating
3. No natural selection
4. Extremely large population
size
5. No gene flow
Consider we have nine pea plants.
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8/27/2021
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How many copies of W are present?
How many copies of w are present?
What is the total number of gene copies in the population?
Calculate the allele frequency.
Step 1:
Step 2:
What do you think genotype frequency can tell us? Phenotype frequency?
Calculate the genotype and phenotype frequency of the same pea plant population.
Change in allele frequency over generations = ?
Closing: What are the three mechanisms of change? How can having a small gene pool be detrimental to
a population when it comes to recessive genes?
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