Snap dragon flower color displays incomplete dominance. The likely phenotypic ratio of the f2 progeny resulting from a monohybrid cross of true-breeding parents with white and red flowers is 1:2:1.
The snap dragon flower follows incomplete dominance thus when parent flower of white and red color are crossed it results in all pink flowers. When this pink progeny that is f1 generation is crossed again with itself it results in three different phenotypes that are pink, red, and white.
Thus, the phenotypic ratio of f2 generation comes out to be 1:2:1 signifying red:pink:white colored flowers.
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