A. 0.667. B. 0.995. C. 0.140. D. 0.333. E. 0.001 On the planet Trogus, the popul

Question

A. 0.667.

B. 0.995.

C. 0.140.

D. 0.333.

E. 0.001

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, 60% of individuals with the TT genotype prefer sorbet, 25% of Tt individuals prefer sorbet, and 5% of tt individuals prefer sorbet. In an F1 cross of Tt x Tt genotyped individuals, among the F2 population of individuals who prefer ice cream, what is the probability that a random individual has the TT genotype?

Explanation / Answer

Given, Individuals with the T allele in their genotype show a propensity for sorbet,

T allele in their genotype show a propensity for ice-cream.

60% of individuals with the TT genotype prefer sorbet

25% of Tt individuals prefer sorbet

5% of tt individuals prefer sorbet

Tt X Tt

TT, Tt, Tt, tt

According to Mandel 25% should prefer ice-cream, but it is given that 5% prefer sorbet.

and 40% of TT prefer icecream.

So out of 25% of total individual 40% like icecream

So the percentage of TT liking icecream = 10% = 1/10

So the probability random individual with TT genotype who like icecream will be

So out of 100% the probability of individual with TT and liking icecream will be = 0.1/100 = 0.001.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.