In pumpkin, the white color of the fruits (A) dominates over the yellow (a), and the disc-shaped form (B) – over the spherical (b). In the offspring from the crossing of a diheterozygous individual with an individual with white globular fruits, all plants have white fruits. Establish the genotype of the parent plant with white globular fruits.
Since all descendants had white fruits (dominant trait), the recessive allele (yellow color) did not appear. Consequently, the descendants received the dominant allele AAbb from both parents.
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