Question

You cross a true-breeding red-flowered snapdragon with a true-breeding white-flowered snapdragon. all of the f1 are pink. what can you say about the alleles for the parental traits? you cross a true-breeding red-flowered snapdragon with a true-breeding white-flowered snapdragon. all of the f1 are pink. what can you say about the alleles for the parental traits? both red and white are recessive. red is dominant. red and white show incomplete dominance. pink is dominant, whereas red and white are recessive.

Answer 1

Red and white show incomplete dominance

Incomplete dominance is a form of intermediate inheritance in which one allele for a specific trait is not completely expressed over its paired allele. This results in a third phenotype in which the expressed physical trait is a combination of the phenotypes of both alleles.

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Answer 2

Answer:

Incomplete dominance

Explanation:

When you cross two true breeding parents, a red and a white snapdragon you would normally expect at least some of the offspring to have these same traits. The fact that all of the F1 have a completely different phenotype (pink flowers) indicates the existence of incomplete dominance, in which one of the phenotypes (red) is only partially dominant over the other (white). When you cross the F1 with each other then you again see the original phenotypes, red and white reappear.