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19. In snapdragons, variation in flower color is determined by a single gene. RR individuals are red, Rr (heterozygous) individuals are pink, and rr individuals are white. In a cross between het- erozygous individuals, the expected ratio of red- flowered: pink-flowered:white-flowered off- spring is 1:2:1. a. The results of such a cross were 10 red-, 21 pink-, and nine white-flowered offspring. Do these results differ significantly (at a 5% level) from the expected frequencies? b. In another, larger experiment, you count 100 times as many flowers as in the experiment in part (a) and get 1000 red, 2100 pink, and 900 white. Do these results differ signifi- cantly from the expected 1:2:1 ratio? c. Do the proportions observed in the two experiments [i.e., in parts (a) and (b)] differ? Did the results of the two hypothesis tests differ? Why or why not