A lymphocyte in metaphase with the chromosomes lined up on the equatorial plate. The plane of section does not include the spindle fibers. 1 = Endoplasmic reticulum. 2 = Mitochondria.

• 出于有丝分裂期的淋巴细胞。染色执白列于赤道板。切片平面为见纺锤丝。1=内质网。2=线粒体