In pigs, the black color of the bristles (wool) dominates over the red color, the long bristle shape over

In pigs, the black color of the bristles (wool) dominates over the red color, the long bristle shape over the short one. Genes for color and length of bristles are localized in different pairs of homologous chromosomes. Determine the genotypes of the parents and the formula for splitting hybrid offspring if a diheterozygous animal is crossed with a homozygous black one with short bristles.

To answer the question posed, one should use the rules and formulas available in biological science and which make it possible to determine the genotypes of parents and offspring. In accordance with the condition of the problem, we introduce the following designations: A – black color, a – red. B-long bristles. b – short. Further, taking into account that they are in different pairs of homologous chromosomes, we conclude that they are not linked. The genotypes of the parents can be determined as follows: AaBb x AAbb. Therefore, after splitting (1: 1: 1: 1), the genotypes of the offspring will look like: AABb, AAbb, AaBb, Aabb.