in such cells , fixed in neutral formalin in tyrode 's solution and stained with phosphotungstic acid , electron microscopy shows that the unirradiated parts of the chromosomes consist of ( a ) a homogeneous or finely fibrillar material ( component-a ) filling the meshes of ( b ) an irregular network with bars 40 to 300 a in diameter , some of which continue into a similar interchromosomal network .
C0007634
cells
C0729606
parts