1、Monosomy 21 and isochromosome 18q are the most commonly observed chromosomal abnormalities in patients with tetralogy of Fallot.
21号单体性和18号等位染色体是肺动脉骑士四联症患者中最常见的染色体异常。
2、Isochromosome formation is one of the mechanisms for generating trisomy or tetrasomy in human cancer cells.
等位染色体形成是人类癌细胞产生三体或四体的机制之一。