On the planet Trogus, the population of Trogites have an autosomal gene, HDZ, wi
ID: 133035 • Letter: O
Question
On the planet Trogus, the population of Trogites have an autosomal gene, HDZ, with two alleles, T and t. T is dominant to t. Individuals with the T allele in their genotype show a propensity for sorbet, while the remainder prefer ice cream. In multiple population studies, 90% of individuals with the TT genotype prefer sorbet, 90% of Tt individuals prefer sorbet, and no tt individuals prefer sorbet.
In an F1 cross of Tt x Tt genotyped individuals, among the F2 population of individuals who prefer sorbet, what is the probability that a random individual has the TT genotype?
Explanation / Answer
F2 generation will be TT Tt Tt tt.
Assume population size to be 100.
Probability of genotype being TT = 22.5 / 67.5 = 0.333
Final Answer = 0.333
Genotype Population % who prefer sorbet Pop. who prefer sorbet TT 25 90 22.5 Tt 50 90 45 tt 25 0 0Related Questions
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