2.) If the ability to taste PTC and similar molecules were a selective advantage
ID: 3523556 • Letter: 2
Question
2.) If the ability to taste PTC and similar molecules were a selective advantage, meaning that PTC tasters were more likely to survive and produce offspring, would you expect the frequency of the dominantn allele to change?
3.) If the ability to taste sodium benzoate is genetically inherited, do you think that the ability to taste it is determined by two alleles, or more than two? Explain your answer.
Data Table Sodium Benzoate PTC Thiourea Tasters Nontasters Tasters Nontasters Tasters Nontasters Sweet Salty Bitter Other Personal Class Totals % Class 4. Repeat the taste test for the other three taste papers. Each time, record your taste response in the Data Table. 5. Complete the Data Table by filling in the test results for the entire class population 6. Using your class total population data, perform a Hardy-Weinberg Analysis to determine the allele frequency and genotype frequency, and the number of individuals possessing each genotype. 7. Answer the Laboratory Questions.Explanation / Answer
1. In this stimulation , the population size in the classroom setting will never be big enough to fit the equation. Therefore, the condition that were not met were random mating and that we were a large breeding populations.
2. According to the Hardy Weinberg equation the frequency of dominant allele would not change since there can be no natural selection. But if natural selection were to be play then the frequency of the dominant allele will change by increasing.
3. The ability to taste sodium benzoate is most likely determined by more than two alleles. The tasting outcome, rather than being simple 'yes' or ' no' , is instead split up into multiple groups ( no taste, salty taste, sweet taste, bitter taste and other) . Assuming each taste group is the product of a separate allele , we can infer that there must be a wider variety of alleles associated with the ability to taste sodium benzoate.
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