[Comparative characteristics of phenotypes in numerical anomalies of human X-chromosomes (morphologic and...

On the basis of data on antropological and psychological investigation of 30 XXY males, 30 X0 females and 10 XXX females comparative characteristics of phenotypes of patients are given. The persons with X monosomy (the absence X- or Y-chromosomes) are observed to have decreased total sizes of body, to retain the ability to compensate congenital mental defects, to use standard methods of the adaptation to social environment and to assimilate standard norms of social behaviour. The persons with trisomies XXY and XXX (the presence of the additional heterochromatic X-chromosome) have the tendency to an increase of the longitudinal body sizes independently on sex; they have a delayed development of mental functions and reduced possibilities to compensation of these functions; they also have different degrees of disorganization of the social behaviour and the disadaptation to social environment. It is found that the patients with numerical anomalies of human X-chromosome (both the lack and the excess of chromosome material) have a disturbance of development of the sex dimorphism and sex dipsychism.