1.) In class, we did the Hunger Games Lab. There were three different types of feediing techniques. Stumpys could only pick up food with their wrists. Knucklers could only pick up food in between their knuckes of their index and middle fingers. Pinchers could only pick up food between their thumb and index finger. Corks were spread around in a circle and people could pick them up using their respective feeding technique. Once all the corks were picked up, Mr.Orre announced how much corks were needed to survive. If you had collected enough corks, you could "reproduce" with someone else. We simulated "sex" by flipping coins labeled with different alleles. If you did not collect enough corks, you "died" and were "reincarnated" as the offspring of those who collected enough corks. This lab stimulated natural selection. Those that had better traits survived and were able to produce offspring.
2.) The phenotype that was best able to collect food was the pincher phenotype. They were the best at collecting the food because they usually had the most amount of corks collected.
3.) In this lab, we asked the question of whether populations evolve. We found out that populations do evolve. In the first round, the allele frequency was 52% for "A" and 48 for "a." By the seventh round, the allele frequency for "A" was 40% and was 60% for "a." This makes sense, because as a result of natural selection, populations begin to look like the winners. The stumpys, who were AA, were really bad at collecting food, but the pinchers, who were aa, were the winners.
4.) In this lab, the placement of food and location of the individuals were random. The things that were not random were mating and the amount of food. Random events such as when all the food was placed in the middle resulted in a bottleneck effect. Only those who were lucky, not necessarily evolutionary fit, survived.
5.) The results would have been different the food was smaller or bigger. If it was smaller, the pinchers would have an easier time collecting it. If it was bigger, pichers and knucklers would have a harder time collecting the food. In nature, for example, if fruit got bigger, it will favor those with bigger beaks.
6.) The results would be different if there was no incomplete dominance. The population would be all pinchers. Since the knucklers would die in the first few rounds, there would be no way for the knuckler population to come back.
7.) Natural selection is what causes evolution. Natural selection means that those with better genes are more likely to reproduce. This changes the allele frequency, which is what evolution is.
8.) Some strategies that people used included being agressive, using their hood, and diving. These behaviors allowed them to have a better chance at reproducing. However, since these behaviors were not genetic, they were not passed on to their offspring. Some birds are less afraid of diving, so they can get more fish. Since that trait is not genetic, it is not passed on to their offspring.
9.) In evolution, the population is what evolves. Natural selection acts on just the phenotype. Nature has no idea what genes organisms have. It only rewards those whose phenotype gives them an advantage.
10.) I still wonder about the effects of cheating and other factors that cannot be measured. I wonder how much of an effect they actually had on the population
2.) The phenotype that was best able to collect food was the pincher phenotype. They were the best at collecting the food because they usually had the most amount of corks collected.
3.) In this lab, we asked the question of whether populations evolve. We found out that populations do evolve. In the first round, the allele frequency was 52% for "A" and 48 for "a." By the seventh round, the allele frequency for "A" was 40% and was 60% for "a." This makes sense, because as a result of natural selection, populations begin to look like the winners. The stumpys, who were AA, were really bad at collecting food, but the pinchers, who were aa, were the winners.
4.) In this lab, the placement of food and location of the individuals were random. The things that were not random were mating and the amount of food. Random events such as when all the food was placed in the middle resulted in a bottleneck effect. Only those who were lucky, not necessarily evolutionary fit, survived.
5.) The results would have been different the food was smaller or bigger. If it was smaller, the pinchers would have an easier time collecting it. If it was bigger, pichers and knucklers would have a harder time collecting the food. In nature, for example, if fruit got bigger, it will favor those with bigger beaks.
6.) The results would be different if there was no incomplete dominance. The population would be all pinchers. Since the knucklers would die in the first few rounds, there would be no way for the knuckler population to come back.
7.) Natural selection is what causes evolution. Natural selection means that those with better genes are more likely to reproduce. This changes the allele frequency, which is what evolution is.
8.) Some strategies that people used included being agressive, using their hood, and diving. These behaviors allowed them to have a better chance at reproducing. However, since these behaviors were not genetic, they were not passed on to their offspring. Some birds are less afraid of diving, so they can get more fish. Since that trait is not genetic, it is not passed on to their offspring.
9.) In evolution, the population is what evolves. Natural selection acts on just the phenotype. Nature has no idea what genes organisms have. It only rewards those whose phenotype gives them an advantage.
10.) I still wonder about the effects of cheating and other factors that cannot be measured. I wonder how much of an effect they actually had on the population
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