the reversible effects on the chromatin pattern obtained following the treatment of living cells with various nacl solutions , and the following conclusions have been reached : ( a ) the chromatin is connected to the nuclear membrane , ( b ) homologous chromosomes show close side-by-side somatic pairing , ( c ) the long arms of the sex chromosomes form a fluorescent peripheral body , ( d ) the autosomes are strongly reflexed at the centromeres , ( e ) the autosomal centromeric regions are polarized towards the peripheral body , ( f ) the telomeric regions of all the autosomes are closely apposed. -- a ring-shaped pattern of interphase chromatin is constantly and reversibly induced by nacl 0.15 to 0.18 m solutions. -- these relationships indicate a peripheral arrangement of the interphase somatic complement. -- the distribution of the chromosomes in polytene nuclei and at the beginning of meiosis resembles that suggested above for somatic interphase cells .
C0007634
the
C0007709
centromeres