The study results of the ARG2 polymorphism rs3742879in children with asthma and individuals of the control groupfrom the Republic of Bashkortostan are presented in Table 2.The rs3742879*G allele is less common in all ethnic groups,it was revealed with a frequency of 30.67 % in Russians,26.22 % in Tatars and 29.17 % in Bashkirs control groups. The gene discussed is ARG2; the disease is asthma.