1. A dominant allele, T, codes for the ability to taste the compound phenylthiocarbamide (PTC). People who are homozygous for the recessive allele, t, are unable to taste PTC. In a genetics class of 120 students, 3 cannot taste the PTC. Calculate the expected frequencies of the T allele in the student population.
2. A dominant allele, T, codes for the ability to taste the compound phenylthiocarbamide (PTC). People who are homozygous for the recessive allele, t, are unable to taste PTC. In a genetics class of 125 students, 9 cannot taste the PTC. Calculate the expected frequencies of the t allele in the student population.
3. A dominant allele, T, codes for the ability to taste the compound phenylthiocarbamide (PTC). People who are homozygous for the recessive allele, t, are unable to taste PTC. In a genetics class of 125 students, 21 cannot taste the PTC. How many students would you expect to be heterozygous for the tasting gene?
4. A dominant allele, T, codes for the ability to taste the compound phenylthiocarbamide (PTC). People who are homozygous for the recessive allele, t, are unable to taste PTC. In a genetics class of 125 students, 15 cannot taste the PTC. How many students would you expect to be homozygous dominant for the tasting gene?
5. A farmer planted some bean seeds. When the seeds germinated, 207 of the seedlings were albino, a recessive trait, and 2999 were green. Determine the proportion of the seedlings that you would expect to be homozygous for the production of chlorophyll. Express your answer as a decimal.
6. A farmer planted some bean seeds. When the seeds germinated, 2675 of the seedlings were albino, a recessive trait, and 212 were green. Determine the number of seedlings that you would expect to be carriers of the albino allele.
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