Pset2Questions+figures

B there are 10000 algal cells in a pool one of them

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and they mate randomly, but after a few dozen generations, there are 35 red and 35 yellow unicorns. B. There are 10,000 algal cells in a pool. One of them gets a unique C G mutation that has no effect on function. In the next generation, this cell has 2 offspring that survive (both with the mutation) and the population size is still 10,000. C. There are 100 biologists on Biology Island. 4 have red hair. One biologist accidentally infects everyone with Ebola, but 3 biologists survive, including one redhead. There is no evidence that red hair correlates with disease resistance. D. There are a bunch of beetles. Only one is blue. You accidentally step on it, but not because it’s blue. Sadly, now there are no blue beetles. E. Liberty the moose and her eight offspring are far more hardy in the winter than most moose, and her local population of 1000 moose goes through a prolonged period of very cold winters in which many moose die. During this period, you find that the fraction of the population that consists of the descendants of Liberty and her offspring rises faster than what you would expect by chance alone, and after 5 years, a fifth of the new population of 500 individuals now consists of the descendants of Liberty. Reset Selection Mark for Review What's This? Question 4 of 5 4.0 Points A founder population is started by a very few members of the original population. What are the most likely outcomes in this founder population? Pick ALL that apply: A. The total number of mutations per generation will be higher in the founder population than in the original population. B. The genetic variation present in the founder population will most likely be lower than the genetic variation present in the original population. C. Allele frequencies in the founder population might be different from allele frequencies in the original population. D. The frequency of a deleterious allele may be higher in the founder population than in the original population. E. Genetic drift will play a smaller role in the founder population than in the original population. Mark for Review What's This? Question 5 of 5 4.0 Points The change in allele frequency resulting from one generation of selection is given by p’ - p. The size of this change depends on the starting frequency, p. Using the same fitnesses for the example given in class (w11 = 1, w12 = 0.95, and w22 = 0.9), find p’ - p when p = 0.01. For comparison, in the example from class with p = 0.5 we have p’ - p = 0.013. A. 0.022 B. 0.0063 C. 0.00055 D. 0.00040 E. 0.000017 F. need more information Reset Selection Mark for Review What's This? Part 4 of 7 - Phylogenetics
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4/12/13 6:34 PM 2013 Problem Set 2 on Evolution Lectures 4-6 Page 4 of 10 https://coursework.stanford.edu/portal/tool/1c2f43e9-1653-4e97-98f7-93a4fbb2cb09/jsf/delivery/beginTakingAssessment You discover a new genus of fish with five species. In order to determine the phylogenetic relationships among these species, you examine 5 different characters in each of the five species, as well as in a more distantly-related outgroup. The outgroup has gray scales, no stripes, a short dorsal fin, a narrow body, and a preference for leafy
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B There are 10000 algal cells in a pool One of them gets a...

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