| cs2s04 gradients containing both hg2+ and ag+ effect the complete separation of satellite deoxyribonucleic acids having identical densities in neutral cscl gradients. | a combination of both ag(+) and hg(2+) in cs(2)so(4) effects the complete separation of two dnas having identical densities in cscl. satellite dnas of hermit crab, pagurus pollicaris, and lobster, homarus americanus, have been isolated by this means. | 2015 | 4522292 |
| comparison of microthrix ultrastructure and morphology on the plerocercoid and adult scolex of calliobothrium cf. verticillatum (tetraphyllidea: onchobothriidae). | the distal bothridial surfaces of adult triloculate onchobothriids are covered with short structures that have been tentatively classified as very short filitriches, but this hypothesis has never been tested. scanning electron microscopy (sem) and transmission electron microscopy (tem) were used to investigate microthrix morphology in the plerocercoid and adult forms of calliobothrium cf. verticillatum, a triloculate onchobothriid tapeworm from long island sound (connecticut). plerocercoids of c ... | 2007 | 17436936 |