HW2 MicroMacroEvolution

HW2 MicroMacroEvolution - alternative splicing ? 5. Define...

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ANT 301 Summer 2010 Name_____________________________ HOMEWORK 2 : MICRO AND MACROEVOLUTION Use your lecture notes and your textbooks to answer the following questions: 1a. Define the four forces of evolutionary change. 1b. Give an example of how each force of evolution could affect gene frequencies within a population. For a hypothetical primate gene, the T allele produces wavy hair and the t allele produces straight hair. The T allele is dominant while the t allele is recessive. 2. If both parents have the Tt genotype, what percentage of the offspring would have the wavy hair phenotype ? What percentage would have the straight hair phenotype? (hint: use a Punnett square) 3. If one parent has the Tt genotype and the other has the tt genotype , what percentage of offspring would have the wavy hair phenotype? What percentage would have straight hair? 1
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ANT 301 Summer 2010 Name_____________________________ 4. What is
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Unformatted text preview: alternative splicing ? 5. Define the three modes of speciation and give an example of each mode. 6. Below is a character table for three dragon species (A, B, and C). For each of the characters (number of legs, wings, fire breathing), there are two character states. The bolded character state is the apomorphic trait. Dragon X Dragon Y Dragon Z Number of Legs two / four four two two Wings present /absent absent present present Fire Breathing present /absent absent absent present Using the character table below, label the appearance of apomorphic traits on the phylogeny below. Hint: Dragon A is the outgroup. a._____________________ Dragon X Dragon Y Dragon Z b. _____________________ c. _____________________ 2 a. b. c. ANT 301 Summer 2010 Name_____________________________ 7. Define convergence and give an example. 8. Describe how convergence affects phylogenetic reconstructions. 3...
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This note was uploaded on 11/23/2010 for the course CH 10000 taught by Professor Mccord during the Spring '10 term at University of Texas at Austin.

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HW2 MicroMacroEvolution - alternative splicing ? 5. Define...

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