The formation of flower color in a scented pot depends on the normal functioning of two non-allelic genes.

The formation of flower color in a scented pot depends on the normal functioning of two non-allelic genes. Let us designate them with the letters A and B. That is, for the corolla to be colored, it is necessary that at least one dominant allele of each gene is present in the genotype of the individual: A_B_. Homozygosity for the recessive (mutant) allele of any of the two genes will lead to the formation of a white color: A_bb; aaB_; aabb. Make a crossing scheme for two plants with white flowers: AAbb and aaBB. What phenotypic cleavage will occur in the second generation? Genes A and B are located on different chromosomes.

Make a diagram.

1. AB
2.ab
3.aB
4.ab

AB
1.painted AABB
2.colored ААВb
3.colored ААВb
4.colored AaBb

AB
1.colored ААВb
2.white AABB
3.colored AaBb
4.white Aabb

aB
1.painted AaBB
2.colored AaBb
3.white aaBB
4.white aaBb

aw
1.colored AaBb
2.white Aabb
3.white aaBb
4.white aabb

Conclusion: splitting dyed to white 9: 7, instead of 9: 3: 3: 1. Since there is an interaction of several non-allelic genes.
The phenomenon of the interaction of several non-allelic genes, leading to the development of a new manifestation of a trait that is absent in the parents, is called complementary interaction. Along with the complementary interaction, there are other options for the interaction of non-allelic genes, for example, epistasis, polymeria.