[2 levels of association possibilities for acrocentric chromosomes in 2 chromosomal associations of human lymphocytes].

Association potentialities of acrocentric chromosomes were evaluated from the frequencies of associations consisting of two homologues. The evidence obtained enabled one to calculate the frequencies of associations consisting of two nonhomologous and mixed acrocentric chromosomes. Such frequencies turned out to occur 4-fold less than empiric frequencies of the respective associations. This is possible with 2-fold increase in the association potentialities of each acrocentric chromosome entering the association of two nonhomologous and mixed chromosomes. A correlation performed according to Pirson's criterion revealed a good agreement of empiric and theoretic frequencies calculated with due regard 2-fold magnification of the association potentialities. This finding does not reject a hypothesis of 2-fold magnification of the association potentialities in acrocentric chromosomes entering the association consisting of 2 non-homologous and mixed chromosomes.