If red flowering snapdragons are crossed with white flowering snapdragons, what would be the expected phenotype of the offspring

The phenotype of the offspring would be: pink.

The offspring(F1 generation) have a different phenotype than the true-breeding parents( red and white) because this is this is an example of incomplete dominance. The F1 generation is a result of a blend between the phenotypes of its parents.

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The answer is joseph is observing the colour of the reaction mixture to see whether proteins are present in the given solution.