2. Compare your results to those of another lab group you think this is the case? 3. Is this population in Hardy-Weinberg Equilibrium? What does that tell you about this population in relation to the 4 conditions needed for equilibrium?

Biology 2e
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ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter44: Ecology And The Biosphere
Section: Chapter Questions
Problem 15CTQ: The population is an important unit in ecology as well as other biological sciences. How is a...
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Exercise 4: Population Genetics
1. How do the genotype frequencies (or number of kittens) among the parents compare to
with those of their kittens (2nd generation)?
2. Compare your results to those of another lab group and explain what you see here. Why do
you think this is the case?
Exer
How
the l
pres
A
re
ac
N
th
20
3. Is this population in Hardy-Weinberg Equilibrium? What does that tell you about this
population in relation to the 4 conditions needed for equilibrium?
Exercise 4.2 Evolving Populations
In this part of the exercise, we will use the toothpicks to illustrate the effects of natural selection
in our population of cats. In our small town, people don't usually set out food for the cats who
live there, because they are fairly unobservant and didn't notice all those solid black cats hiding
in the shadows. But now, with the mutation creating white spots on some of the cats, people are
noticing these cats and leaving food out. Let's assume that only the cat who's seen actually eats
the food that is left out, so in general, cats with the SS genotype (mostly white fur) will get the
most food and be healthier, compared to the Ss genotype cats (black with a few white spots) wh
get some food, and the ss genotype cats (all black fur) who are not getting food from humans.
Now our population is experiencing selective pressure, favoring the S allele that allows larger
patches of white to appear in the phenotype.
Transcribed Image Text:Exercise 4: Population Genetics 1. How do the genotype frequencies (or number of kittens) among the parents compare to with those of their kittens (2nd generation)? 2. Compare your results to those of another lab group and explain what you see here. Why do you think this is the case? Exer How the l pres A re ac N th 20 3. Is this population in Hardy-Weinberg Equilibrium? What does that tell you about this population in relation to the 4 conditions needed for equilibrium? Exercise 4.2 Evolving Populations In this part of the exercise, we will use the toothpicks to illustrate the effects of natural selection in our population of cats. In our small town, people don't usually set out food for the cats who live there, because they are fairly unobservant and didn't notice all those solid black cats hiding in the shadows. But now, with the mutation creating white spots on some of the cats, people are noticing these cats and leaving food out. Let's assume that only the cat who's seen actually eats the food that is left out, so in general, cats with the SS genotype (mostly white fur) will get the most food and be healthier, compared to the Ss genotype cats (black with a few white spots) wh get some food, and the ss genotype cats (all black fur) who are not getting food from humans. Now our population is experiencing selective pressure, favoring the S allele that allows larger patches of white to appear in the phenotype.
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