ClickerQ3-4_2011 - In-class questions weeks 3-4 Population...

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Unformatted text preview: In-class questions weeks 3-4 Population Genetics1) Why is the Hardy-Weinberg principle useful to biologists? 1. It allows biologists to determine genotype frequencies from phenotype frequencies. 2. It explains how evolution occurs at the population level. 3. It functions as a null hypothesis when testing for evolution in populations. 4. It explains how random chance mathematically affects evolution. 2) Each circle represents a diploid individual in an imaginary population. What are the genotype and allele frequencies? 1. AA=0.6, Aa=0; aa=0.4. A=0.6, a=0.4. 2. AA=6; Aa=0; aa=4. A=6, a=4. 3. AA=0.6, Aa=0; aa=0.4. A=0.5, a=0.5. 4. AA=0.33; Aa=0.33; aa=0.33. A=0.5,a=0.5 3) You have previously determined that this population has genotype frequencies of AA=0.6, Aa=0; aa=0.4 and allele frequencies of A=0.6 and a=0.4. Is it in HW equilibrium? What are the equilibrium genotype frequencies? 1. Yes. AA=0.36, Aa=0.48, aa=0.16. 2. Yes. AA=0.6, Aa=0; aa=0.4 . 3. No. AA=0.36, Aa=0.48, aa=0.16. 4. No. AA=0.33, Aa=0.33, aa=0.33. AA aa aa AA AA AA aaaa AA AA 4) Each circle represents a diploid individual in an imaginary population. What are the genotype and allele frequencies? 1.AA=0.33; Aa=0.33; aa=0.33. A=0.5,a=0.5 2.AA=7; Aa=0; aa=3. A=7, a=3. 3.AA=0.7, Aa=0; aa=0.3. A=0.5, a=0.5. 4.AA=0.7, Aa=0; aa=0.3. A=0.7, a=0.3 5) You have previously determined that this population has genotype frequencies of AA=0.7, Aa=0; aa=0.3 and allele frequencies of A=0.7 and a=0.3. What are the equilibrium (expected) genotype frequencies? Is it in HW equilibrium? 1.Yes. AA=0.49, Aa=0.42, aa=0.09. 2.Yes. AA=0.7, Aa=0; aa=0.3 . 3.No. AA=0.49, Aa=0.42, aa=0.09. 4.No. AA=0.33, Aa=0.33, aa=0.33. Evolutionary forces: 1) In 1986 a nuclear power accident in Chernobyl led to high radiation levels for miles surrounding the plant, causing elevated mutation rates in the surviving...
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This note was uploaded on 11/02/2011 for the course BIOL 11102 taught by Professor Parks,john during the Spring '11 term at University of Washington.

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ClickerQ3-4_2011 - In-class questions weeks 3-4 Population...

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