Genetic Drift Worms Lab
Genetic Drift Worms Lab
1. The average number of generations it took for the smaller population to become fixed was 10.2. 2. The average number of generations it took for the larger population to become fixed was 10.9.
3. In the smaller population I started off with six variations of the worm and ended with one variation. In the larger population I started off with 12 variations of the worm and ended with 1.
4. Genetic drift caused the changes in these populations.
6. Genetic drift has a greater effect on smaller populations than large populations. In a small population, random chance has a significant change in the frequency of alleles in a short time. In a large population, genetic drift has very little effects in any given generation.
7. Yes, the relative frequency of the alleles in the population changes over time. For example, in the lab it takes several generations before the color of the worm population becomes fixed.
8. Evolution has occurred because the color of the worm species is now fixed to a certain color.
9. Natural selection has not occurred in these populations. The populations are surviving because of genetic drift, chance, not because of their better fitness to their environment.
10. It is impossible for all the trials to end on the same color because of random chance. During the lab, the groups used dice to represent genetic drift. It is impossible to know what numbers the dice will end on and what colors we are going to receive, that is why groups had different colors of worm populations.
11. There is no point to continue the simulation once the population becomes fixed because with no diversity the model will begin and end with all the worms in the population having the same alleles.
1. The average number of generations it took for the smaller population to become fixed was 10.2. 2. The average number of generations it took for the larger population to become fixed was 10.9.
3. In the smaller population I started off with six variations of the worm and ended with one variation. In the larger population I started off with 12 variations of the worm and ended with 1.
4. Genetic drift caused the changes in these populations.
6. Genetic drift has a greater effect on smaller populations than large populations. In a small population, random chance has a significant change in the frequency of alleles in a short time. In a large population, genetic drift has very little effects in any given generation.
7. Yes, the relative frequency of the alleles in the population changes over time. For example, in the lab it takes several generations before the color of the worm population becomes fixed.
8. Evolution has occurred because the color of the worm species is now fixed to a certain color.
9. Natural selection has not occurred in these populations. The populations are surviving because of genetic drift, chance, not because of their better fitness to their environment.
10. It is impossible for all the trials to end on the same color because of random chance. During the lab, the groups used dice to represent genetic drift. It is impossible to know what numbers the dice will end on and what colors we are going to receive, that is why groups had different colors of worm populations.
11. There is no point to continue the simulation once the population becomes fixed because with no diversity the model will begin and end with all the worms in the population having the same alleles.