Dear Editor, Translocations of the same chromosomal fragments to two or more different chromosomes in different somatic cell lineages are referred to as jumping translocations (JTs).JTs have been mainly reported in he...Dear Editor, Translocations of the same chromosomal fragments to two or more different chromosomes in different somatic cell lineages are referred to as jumping translocations (JTs).JTs have been mainly reported in hematological malignancies but have been observed in rare instances also as constitutional chromosomal aberrations.2 The underlying JT mechanism remains unclear,however.展开更多
NOR is a chromosomal segment which contains several copies of the genes coding for 18 s and 28 s rNRA. This segment is found in humans on the secondary constriction site of the acrocentric chromosome (AC). A variant o...NOR is a chromosomal segment which contains several copies of the genes coding for 18 s and 28 s rNRA. This segment is found in humans on the secondary constriction site of the acrocentric chromosome (AC). A variant of NOR, double NOR (dNOR), has been found in some people. Deletion, repetition and elongated variants have also been found in previous studies. Light microscopic observations and satellite association (SA) silver staining techniques were used to measure展开更多
文摘Dear Editor, Translocations of the same chromosomal fragments to two or more different chromosomes in different somatic cell lineages are referred to as jumping translocations (JTs).JTs have been mainly reported in hematological malignancies but have been observed in rare instances also as constitutional chromosomal aberrations.2 The underlying JT mechanism remains unclear,however.
文摘NOR is a chromosomal segment which contains several copies of the genes coding for 18 s and 28 s rNRA. This segment is found in humans on the secondary constriction site of the acrocentric chromosome (AC). A variant of NOR, double NOR (dNOR), has been found in some people. Deletion, repetition and elongated variants have also been found in previous studies. Light microscopic observations and satellite association (SA) silver staining techniques were used to measure
