Inbreeding is the crossing of closely related organisms that have genetic similarities. It is carried out when, due to various circumstances, the initial forms do not have the possibility of crossing with random lines. This may be due to geographical factors (isolation of the area, environmental isolation), the impossibility of mixing due to differences in individuals on sex chromosomes, the inability of females to cross due to the absence of males, and so on.
This type of crossing is especially typical for genetically pure, artificially created varieties that come under control during their mass cultivation.
What is inbreeding? Inheritance of parental characteristics in offspring occurs on the basis of the inception and development of the possibilities of complete similarity of the genotype and phenotype with their prototypes due to the fixation and preservation of almost all hereditary properties of the parent organism. This process fully justifies the meaning of this term, which means the convergence and mixing of heterogeneous elements (languages, dialects, traditions, elements of culture and behavior), which is inevitable in conditions of isolation, sharp social inequality, low living standards (that is, in underdeveloped and poor rural settlements, remote regions). And if we consider that the ancestors of these peoples were often outstanding people who are considered to be symbols of progressive development,