(n.) A cartilaginous fish of several species, belonging to the order Holocephali. The teeth are few and large. The head is furnished with appendages, and the tail terminates in a point.
Example Sentences:
(1) A chimaera, called pCS200, which mediated expression of the CS1 or CS2 fimbrial antigen but not of CS3 fimbrial antigen in appropriate host strains, was obtained.
(2) In additional experiments, F1 to parental bone-marrow chimaeras were constructed such that the bone-marrow-derived cells and the non-bone-marrow-derived cells were of different RT-1 allotypes.
(3) Our motility analyses of the chimaeras confirmed that transplanted thoracic somitic mesoderm gives rise to brachial musculature and that the experimental muscles maintained the inherent dystrophic phenotype.
(4) Nevertheless, in a substantial proportion of chimaeras, OCs colonized derivatives of the ICM.
(5) These share a common placental circulation and hence develop as haematopoietic chimaeras.
(6) Results in a group of AKR reversible CBA leukaemia susceptible reversible resistant chimaeras suggest resistance is dominant.
(7) The [lpr----lpr] chimaeras were similar to untreated lpr mice.
(8) This leads to the total elimination of cell populations with one genotype, rat in particular in the mouse--rat chimaeras, or, possibly, to the sterility of the sheep--goat chimaeras.
(9) Germ-line transmission of the inactivated IGF-II gene from male chimaeras yielded heterozygous progeny that were smaller than their ES cell-derived wild-type littermates (about 60% of normal body weight).
(10) Plasmid pRB1, a representative chimaera carrying only the 3.3 kbp Sau3A fragment of pCB101, was successfully transferred from B. subtilis back to E. coli.
(11) Using the chick-quail chimaera technique we also studied the fate of each half-somite.
(12) By using the cytotoxic test, we found that both tolerant and nontolerant recipients were complete chimaeras, i.e., had only (C57BL x CBA-T6T6)F1 cells in their lymph nodes.
(13) Cell line SIKR-OSB resulted in one normal chimaera in 44 mice born.
(14) Two surgical embryo transfers to the chimaera resulted in pregnancies.
(15) The results demonstrate that the properties of protein domains are not always additive in a particular chimaera.
(16) Therefore, the possibility that the defect in development of P primitive ectoderms resided in their extra-embryonic tissues was investigated by analysing a series of chimaeras produced by injecting them into intact F blastocysts.
(17) Totally allogeneic chimaeras could be sensitized but only if given antigen in association with the appropriate Mph.
(18) The ultrastructure of T and B lymphocytes has been examined in long-term syngeneic chimaeras and age-control mice.
(19) delta-crystallin expression in these tissues is due to proper transcriptional regulation, since no expression was observed when chimaeras were produced with the ES lines carrying the mutant gene.
(20) Therefore, the lymphoid aplasia of [lpr----wild] radiation chimaeras does not result from an lpr graft-versus-host-like syndrome.
Holocephali
Definition:
(n. pl.) An order of elasmobranch fishes, including, among living species, only the chimaeras; -- called also Holocephala. See Chimaera; also Illustration in Appendix.
Example Sentences:
(1) Thus, B. bagarius has the 'median eminence equivalent' neuroadeno-interface vasculature typical of the teleosts and the median eminence comparable to the Elasmobranchs, Holocephali and primitive Actinopterygians.
(2) According to their capacities, presence of lymphoid tissue, and histological organization, the meningeal lymphohemopoietic aggregates of Dasyatis akajei resemble other lymphomyeloid aggregates associated with cranium and choroid plexuses in Holocephali and Ganoidei.
(3) The ratfish, Callorhinchus callorhinchus, a representative of the Holocephali, has a natural serum hemagglutinin (Mr 960,000), composed of heavy (Mr 71,000), light (Mr 22,500), and J (Mr 16,000) chains.