Cytoplasmic DNA in the unfertilized sea urchin egg: physical properties of circular mitochondrial DNA and the occurrence of catenated forms.
D000818:Animals; D002499:Centrifugation, Density Gradient; D003593:Cytoplasm / Q000032:analysis*; D004247:DNA / Q000032:analysis*; D004447:Echinodermata; D005260:Female; D008854:Microscopy, Electron; D008928:Mitochondria / Q000032:analysis; D010063:Ovum / Q000032:analysis*
D004247:DNA