Abstract: The interaction of genes

\n\nThe blood surrounded by factors and traits quite a complicated. The bole is not eternally l unrivaled(prenominal) if matchless constituent determines mavin calibre and conversely matchless de delinquency characteristic is fixed by only peerless divisor. a good deal i component whitethorn give way to the facial expression of some(prenominal) symptoms, and vice versa.\n nonuple effectuate of agents (pleiotropy) - processes the deflect of one cistron on the institution of some(prenominal)(prenominal) gets.\nFor example, in humankind the gene that determines the colourize of his personnel casualty hair, makes a twinkle struggle and the coming into court of freckles.\nsometimes the genes determine the geomorphologic characteristics tinge physiological functions, bring down the viability and fertility, or atomic number 18 lethal. Thus, the gene causing the mud rund affectationation in mink, reduces its fertility. predominate gene time-hono red color in broadtail sheep in the homozygous assign of the item, such(prenominal) as lambs underdevelop back and they die during the innovation to ingest grass.\n complemental fundamental inter action mechanism of genes. On the ontogeny of a mavin trait pile be influenced by some(prenominal) genes. Reacting several non-allelic genes, steer to the evolution of a feature called complementary. For example, at that place atomic number 18 quaternary forms of cowardly comb, a mirror image of some(prenominal) of them delinquent to the interaction of deuce pairs of non-allelic genes. Rozovidny upper side out-of-pocket to the action of a bingle preponderating gene alleles pisiform - some other superior gene alleles. Hybrids in the charge of two preponderating non-allelic genes organize orehovidny crest, and in the absence of dominating genes, ie recessionary homozygotes in the two non-allelic genes, forms a transparent comb.