What's the difference between chimaera and ratfish?

Chimaera


Definition:

  • (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.

Ratfish


Definition:

  • (n.) Same as Rat-tail.

Example Sentences:

  • (1) Ratfish serum proteins have been fractionated by ammonium sulfate, followed by gel filtration on Sepharose 6B.
  • (2) Elephantfish and pig glucagons differ at only four positions, but there are six changes from the ratfish glucagon-36 (normal glucagon contains 29 residues) sequence.
  • (3) Brain extract from the spotted ratfish, Hydrolagus colliei, contains gonadotropin-releasing hormone (GnRH)-like peptides in both sexes.
  • (4) Sertoli cells in the ratfish entirely surround a clone of spermatids to form a spermatocyst.
  • (5) A potent, highly selective bombesin receptor antagonist completely abolished the stimulation of amylase release caused by the ratfish peptide, demonstrating the specificity of the response.
  • (6) A highly purified bombesin-like peptide-containing fraction stimulated amylase release in a dose-responsive fashion from rat pancreatic acini; the dose-response curve was parallel to a bombesin standard, and the ratfish peptide stimulated the same maximal rate of amylase secretion as the bombesin standard.
  • (7) The primary structure of insulin from the Holocephalan fish, Hydrolagus colliei (the ratfish), has been established by automated Edman degradation as: (Formula: see text).
  • (8) The presence of a COOH-terminal extension to the B-chain is consistent with the occurrence of a single base mutation in the region of the gene encoding one of the dibasic residue processing sites [Arg31(AGA)----Ile* (AUA)] with the result that the ratfish has utilised an alternative cleavage site within the C-peptide region of proinsulin.
  • (9) Two molecular forms of glucagon-like peptide were isolated from the ratfish pancreas.
  • (10) A 36-amino-acid-residue peptide was isolated from the pancreas of a holocephalan fish, the Pacific ratfish (Hydrolagus colliei), that shows homology (69%) to mammalian glucagon in its N-terminal region and is reactive towards an N-terminally directed antiserum.
  • (11) Spermiogenesis in the ratfish (Hydrolagus colliei) is characterized by unusual changes in the basic proteins of the nucleus.
  • (12) Ratfish (Hydrolagus colliei) intestines were boiled in water to inactivate proteases and then treated with cold 4% trifluoroacetic acid to extract bombesin-like peptides.
  • (13) Pituitary extracts from all animals, except the ratfish, goldfish and trout, contained IR-CGRP.
  • (14) The ratfish represents the most primitive organism that contains a form of GnRH that coelutes with chicken II and salmon II GnRH.
  • (15) The insulin B-chain contains 31 residues, one more than mammalian insulins, but markedly less than that of the closely related ratfish with which it otherwise exhibits high sequence similarity.
  • (16) The insulin with 38 amino acids in the B-chain was equipotent with human insulin in inhibiting the binding of radiolabelled human insulin to rat fat cells but the maximum effect of ratfish insulin upon the transport of 3-O-methylglucose into the cells was only 65% of the maximum effect of human insulin.
  • (17) In contrast to the heavy chain, the ratfish light chains display low sequence similarity with their shark kappa counterparts.
  • (18) It is argued that the ratfish GnRH molecule has been retained for over 400 million years of evolution and is expressed in most vertebrate classes.
  • (19) The amino acid compositions of both rabbit fish and ratfish insulins demonstrated a value consistently lower than that expected for the leucine content of the peptides.
  • (20) Gonadotropin-releasing hormone (GnRH) in the ratfish brain has been isolated and purified using reverse-phase high performance liquid chromatography.

Words possibly related to "chimaera"

Words possibly related to "ratfish"