2. The "Pincher" phenotype was the best at capturing food because it was quickest to pick up the corks with two fingers compared to between your wrists and knuckles. That is the the most natural way for us to pick up objects, which is why it was more effective than the other two phenotypes.
3. In this lab we asked the question: Do populations evolve? I found that the population did evolve, as both the allele frequency and amount of each phenotype has changed. All the phenotypes started with 10 individuals, but by the end there was only 1 stumpy, 14 knucklers, and 6 pinchers. The frequency of the "A" allele has decreased while the "a" allele has increased. This is because the pinchers (aa) have been able to reproduce significantly more than the stumpies (AA), resulting in the "a" becoming more common.
4. The flipping of the coins to simulate sex was random, and the distribution of the food was random, except for when it was in one big pile. Our mates were not random, as we got to choose who to mate with. The non random mating could affect the population, as if you mate with someone with the same genotype as you, your offspring may be more likely to look like the parents. When the food was all in one pile, there was more competition, whereas when it was randomly distributed, everyone was in their own space.
5. If the food had been larger, the population would look more like the stumpies, as it is easier to pick up big pieces of food between the wrists, but the knucklers would not have thrived because it is very difficult to pick up large objects between the knuckles. If the food had been smaller, the population would look more like the pinchers, as it is easy to pick up small objects with your fingers, however there would be few stumpies.
6. If there were no imcomplete dominance there would be no knucklers as they are the result of the heterozygous genotype. Although the genotype for a pincher is homozygous recessive, I believe that pinchers would become more common as they are significantly more efficient at picking up food than the stumpies.
7. Natural selection is a cause of evolution. Over time natural selection can lead to a change in allele frequency in a population, which is considered evolution.
8. Some individuals were more aggressive than other individuals. In real life, this resembles competition and the fight to survive. I even saw some individuals use their phenotype improperly. For example, I saw some stumpies using their hands to scoop up food as well. This can lead to an inaccurate measurement of allele frequency.
9. In evolution, populations evolve due to natural selection. Natural selection acts on phenotypes rather than gentoypes, because factors in the environment only are exposed to the physical traits of the individuals rather than their genes.
10. I wonder how natural selection has affected populations in the area where I live. Has there been a lot of evolution recently?
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