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Overview of the contents of a single Xenopus GV 21 h after injection of Xenopus sperm heads. The sperm heads have been converted into loose clusters of chromatids or single chromatids that have the characteristic features of LBCs. This GV probably received 15–20 sperm heads. The 18 endogenous LBCs and most of the coiled bodies (spheres) occupy the area above the dashed line. This nucleus was stained with mAb H14 against RNA Pol II.
