Determine how flower color is inherited

Two treu breeding white strans of a plant were mated and the Ftwo progeny were all white. When the F1plants were allowed to self fertilize, 179 white flowered and 41 purple flowered F1 plants grew.

(a) Using the ratio of these offspring, determine how flower color is inherited?

(b) Define letter symbols for all the alleles involved. Indicate the genotype classes and the corresponding phenotype ratios of the Ftwo.

(c) A white Ftwo plant is allowed to self-fertilize. Of the progeny 1/4 are white-flowered and 1/4 are purple-flowered. What is the genotype of the white Ftwo plant? Briefly explain how you determined your answer.

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