You test-cross plants you suspect to be AaBb dihybrids and look at 100 offspring, with the following results: Phenotype AB 22 Ab 28 aB 29 ab 21 100 total1. You wish to test the hypothesis that the data are best explained as a dihybrid test cross AaBb x aabb. For a chi-square test, what expected number would you use for the aB class?2. Calculate the chi-square value for these data given the model that the results are from a dihybrid test cross of two genes on separate chromosomes.3. Using the chi-square table provided, determine the probability that the model would give the observed data. Degrees P Values of freeom | 099 | 090 | 050 | 0.10 | 0.05 | 0.01 | 0.001
1 - 002 .45 2.71 3.84 6.64 10.83
2 0.02 0.21 1.39 4.61 5.99 9.21 13.82
3 0.11 0.58 2.37 6.25 7.81 11.35 16.25
4 0.30 1.03 3.36 7.78 9.49 13.28 18.47
5 0.55 1.61 4.35 9.24 11.07 15.09 20.524. Given this probability, would you accept or reject your model?