problem_set_7_f07 - delta p over time and why 3 Using three...

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Problem Set 7 Biocore 301, Fall 2007 15 Points, Due in Lecture November 30 1. Describe the process of allopatric speciation. In doing so, discuss how gene flow, selection and genetic drift affect the process of allopatric speciation. 2. The change in allele frequency with gene flow (delta p) or p t - p t-1 is equal to m (average p – p t-1 ), where m is the gene flow rate (same between all populations) and average p is the average frequency of allele A over all the populations (metapopulations). If you start with three populations with very distinct allele frequencies (each fixed for a different allele for e.g.) explain what happens to
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Unformatted text preview: delta p over time and why. 3. Using three different examples (one for each factor), describe how temporal separation, habitat preference, and pollinator specialization can maintain reproductive isolation between two species. 4. Based on the tree below, is a salamander more closely related to a fish or a lizard? ____________________________ Please explain your rationale. Lizard Snake Turtle Salamander Fish 5. Taxa A and B share a more recent common ancestor with each other than with either C or D. Draw two possible phylogenetic trees that depict these relationships....
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This note was uploaded on 04/29/2008 for the course BIOCORE 301 taught by Professor Howell during the Fall '07 term at University of Wisconsin.

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problem_set_7_f07 - delta p over time and why 3 Using three...

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