överkorsad

Overkorsad is a Swedish term that literally translates to "overcrossed." It is primarily used in the context of animal husbandry, particularly in relation to livestock such as cattle, sheep, and horses. The term describes a genetic phenomenon where a dominant allele is inherited from one parent and a recessive allele is inherited from the other parent, but the resulting phenotype is not a simple blend or dominance of one over the other. Instead, it refers to a situation where the heterozygote exhibits a trait that is distinct from either of the homozygous conditions. This can sometimes be observed in traits like coat color or certain physical characteristics.

In simpler terms, overkorsad can describe a scenario where the offspring of two parents with different traits displays a third, unique trait. This is not to be confused with incomplete dominance where the heterozygous phenotype is an intermediate blend. Overkorsad implies a more complex interaction of genes. While not a formally recognized genetic term in all scientific literature, it is a descriptive term used in practical breeding contexts in Sweden to explain certain observable outcomes in offspring. Understanding this concept can be helpful for breeders aiming for specific genetic outcomes in their livestock.