SEARCH Articles Figures Tables A living primary spermatocyte of Pardalophora apiculata and polar regions by p . Birefringent chromosomal spindle fibers run from each kinetochore toward a pole the diffuse background birefringence of interpolar fibers is identified only with difficulty In the prints but Is readily measured. B., Metaphase the opposite compensator setting. C, D. Anaphase 22 and 36 minutes, respectively, after A. XI,500. [Publishers Imprint]