The variation of 9 anthropometric traits of Buryat, Russian and (Russi
an x Buryat) F1 hybrid newborns was compared. Data show that hybrid ne
wborns are markedly different either from Buryat or Russian newborns.
These differences are associated with significant increase of correlat
ion between 7 anthropometric traits in hybrid newborns. It is suggeste
d that alteration of gene interaction in hybrids is the main reason of
observed differences between them and Russian and Buryat newborns.