A student crosses a pure breeding line of red-flowered poinsettias with a pure breeding line of white flowered poinsettias. The student observes that all the plants in the F, generation have pink flowers. The student then crosses the F, plants with one another and records observations about the plants in the F, generation. The student will use the F data to perform a chi-square goodness-
of-fit test for a model of incomplete dominance. The setup for the student's chi-square goodness of fit test is presented in Table 1
Table 1. A chi-square goodness-of-fit test for Incomplete dominance
Phenotype
Expected
Red flowers
Pink flowers
White flowers
Observed
64
56
107
112
53
56
The critical value for a chisquare test with a significance level of p = 0.05 and 2 degrees of freedom is 5.99. Which of the following statements best completes the student's chi-square goodness-of-
fittest?
A The calculated chi-square value is 1.53, and the null hypothesis cannot be rejected.
The calculated chi-square value is 1.53, and the null hypothesis can be rejected.
The calculated ch square value is 98, and the null hypothesis cannot be rejected.
The calculated chi-square value is 98, and the null hypothesis can be rejected.