Today in class we learned about population genetics and evolution, the Hardy-Weinburg law of genetic equilibrium and the relationship between evolution and changes in allele frequency by using the class to represent a sample population. There are five conditions that have to be met in order for the populations allele and genotype frequencies will remain constant from generation to generation. These conditions are:
1. The breeding population is large
2. Mating is random
3. There is no mutation of the alleles
5. There is no selection
We then tested allele frequencies for a specific trait within the population (class). We had to put PTC taste test papers in our mouths for 15 seconds and see if we tasted chemical or not. We recorded the number of people who tasted and did not taste and determined the frequencies of the two alleles using the Hardy Weinburg equation. We then did case studies where we are given 4 cards, two dominant and 2 recessive. We would then find a partner and then choose a card from them without looking at the card. We did this 5 times, each with a new person. Then we did Case IV about genetic drift where a river split the population so we had to trade cards 5 times to create 5 offspring babies with different traits. With this information we used the Hardy equation to find the frequencies. Then we took a quiz on Hardy Weinburg equations.
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