title: Replication intermediates in the chromosomal DNA of Paracentrotus lividus during cleavage.
mesh_terms: D000818:Animals; D002455:Cell Division; D002875:Chromosomes / Q000502:physiology*; D004261:DNA Replication; D005260:Female; D008297:Male; D008854:Microscopy, Electron; D010063:Ovum / Q000502:physiology*; D012617:Sea Urchins