In pumpkin, the dominant allele of gene A causes yellow color of fruits, allele a – green. The epistatic B gene suppresses coloration

In pumpkin, the dominant allele of gene A causes yellow color of fruits, allele a – green. The epistatic B gene suppresses coloration and the plants have white fruits. Allele b does not affect color expression. Determine the genotypes of the parents and offspring in the following crosses:
1) white-fruited x yellow-fruited; in the offspring there are 78 plants with white fruits, 61 with yellow and 19 with green;
2) white-fruited x green-fruited; in the progeny there are 145 plants with white fruits, 72 with yellow and 66 with green;
3) white-fruited x white-fruited; in the offspring there are 851 plants with white fruits, 218 with yellow and 68 with green ones.

1) Genotypes P: (women) AaBb, (husband) Aabb; F1 genotypes: AABb, AAbb, AaBb, Aabb, aaBb, aabb in the ratio 1: 1: 2: 2: 1: 1;
2) genotypes P: (women) AaBb, (man) aabb; F1 genotypes: AAbb, AaBb, aaBb, aabb in a ratio of 1: 1: 1: 1;
3) genotypes P: AaBb; genotypes F1: AABB: AABb: Aabb: AaBB: AaBb: Aabb: aaBB: aaBb: aabb in the ratio 1: 2: 1: 2: 4: 2: 1: 2: 1.

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