The occurrence of cytochromes in the membranous structures of calf thymus nuclei.
D000818:Animals; D002417:Cattle; D002467:Cell Nucleus / Q000032:analysis*; D003080:Cold Temperature; D003580:Cytochromes / Q000032:analysis*; D008566:Membranes / Q000032:analysis*; D008861:Microsomes / Q000032:analysis*; D008928:Mitochondria / Q000032:analysis*; D013053:Spectrophotometry; D013501:Surface-Active Agents; D013950:Thymus Gland / Q000032:analysis* / Q000166:cytology; D014461:Ultracentrifugation
D003580:Cytochromes; D013501:Surface-Active Agents