(a.) Serving to express, utter, or represent; indicative; communicative; -- followed by of; as, words expressive of his gratitude.
(a.) Full of expression; vividly representing the meaning or feeling meant to be conveyed; significant; emphatic; as, expressive looks or words.
Example Sentences:
(1) Here we have asked whether protection from blood-borne antigens afforded by the blood-brain barrier is related to the lack of MHC expression.
(2) Similar experimental manipulation has yielded in vitro lines established from avian B-cell lymphomas expressing elevated levels of c-myc or v-rel.
(3) When micF was cloned into a high-copy-number plasmid it repressed ompF gene expression, whereas when cloned into a low-copy-number plasmid it did not.
(4) We also show that proliferation of primary amnion cells is not dependent on a high c-fos expression, suggesting that the function of c-fos is more likely to be associated with other cellular functions in the differentiated amnion cell.
(5) Injection of resistant mice with Salmonella typhimurium did not result in the induction of a population of macrophages that expressed I-A continuously.
(6) Stimulation is also observed with mixtures of APC expressing DPw3 and APC expressing A1, and likewise, DPw3+ APC become stimulatory when preincubated with supernatants from A1-positive cells.
(7) BL6 mouse melanoma cells lack detectable H-2Kb and had low levels of expression of H-2Db Ag.
(8) These studies show that metabolic activation is necessary for the expression of the mutagenic activity of aflatoxins B1 and G1 in N. crassa.
(9) We also show that the gene of the main capsid protein is expressed from its own promoter in an Escherichia coli strain.
(10) Using the oocyte system to express size-fractionated mRNA, we have also determined that the mRNA coding for this protein is between 1.9-2.4 kilobases in length.
(11) Because many wnt genes are also expressed in the lung, we have examined whether the wnt family member wnt-2 (irp) plays a role in lung development.
(12) A beta-adrenergic receptor cDNA cloned into a eukaryotic expression vector reliably induces high levels of beta-adrenergic receptor expression in 2-12% of COS cell colonies transfected with this plasmid after experimental conditions are optimized.
(13) Four other independent LCMV-GP2(275-289) specific H-2Db-restricted CTL clones also expressed V alpha 4 and V beta 10 gene elements.
(14) Maximal yields of lipid and aflatoxin were obtained with 30% glucose, whereas mold growth, expressed as dry weight, was maximal when the medium contained 10% glucose.
(15) Recent studies have shown that an aberration in platelet-derived growth factor gene expression is unlikely to be a factor in proliferation of smooth-muscle cells.
(16) Thus, human bronchial epithelial cells can express the IL-8 gene, with expression in response to the inflammatory mediator TNF regulated mainly at the transcriptional level, and with elements within the 5'-flanking region of the gene that are directly or indirectly modulated by the TNF signal.
(17) In concert with TF expressed by monocytes and macrophages this endothelial cell procoagulant activity may play a role in the pathogenesis of thrombotic disease.
(18) The possibility that both IL 2 production and IL 2R expression are autonomously activated early in T cell development, before acquisition of the CD3-TcR complex, led us to study the implication of alternative pathways of activation at this ontogenic stage.
(19) A domain containing a CA repeat, similar to ones found in other late, cAMP-induced Dictyostelium genes, is required for cAMP-induced and developmental expression.
(20) This study examines the role of sex hormones in modulating the expression of autoimmunity in NZB x NZW F1 mice.
Unexpressive
Definition:
(a.) Not expressive; not having the power of utterance; inexpressive.
(a.) Incapable of being expressed; inexpressible; unutterable; ineffable.
Example Sentences:
(1) These rearrangements created a composite exon resulting in the expression of the ordinarily unexpressed delta gene sequence and conferred the hybrid proteins with new antigenic specificities.
(2) The recently identified NB-1 mRNA is transcribed from a single intronless gene, previously thought to be an unexpressed calmodulin pseudogene.
(3) The findings suggest that EB virus is harboured in peripheral lymphocytes of IM patients as a non-productive unexpressed infection which is activated to produce virus in vitro, the particles released then infecting neighbouring cells to give transformed lines.
(4) My younger brother (who may also, like my youngest son, have had unexpressed feelings himself) withdrew into his room as he hit puberty, my mother returned to full-time work and my father was out more.
(5) Such cultures carry HCMV genetic information in a latent, unexpressed, state.
(6) The presence of unexpressed, restorable DH may provide a biologic basis for the so called "transfer factor" phenomenon.
(7) SEVERAL PRACTICAL POINTS IN PERSONNEL MANAGEMENT ARE DISCUSSED: not to tie staff to the institution, not to meddle with their outside affairs or to become too socially intimate, to be sensitive to unexpressed reactions of the staff, to avoid secrets.
(8) This approach allowed analysis of the gene transcription product rather than potentially unexpressed DNA.
(9) In particular, adult alpha A- and alpha D-globin genes were found in matrix DNA, while the transcribed but translationally unexpressed embryonic pi gene was underrepresented.
(10) There's a sense of generations passing in a haze of crisp formalities, with decades of unexpressed emotions left to accumulate, like dust on a snoozing duchess.
(11) Pyrimidine dimers are cleared preferentially from the transcribed strand of the DHFR gene and are removed poorly from the non-transcribed complementary strand and unexpressed adjacent regions.
(12) Studies with the delayed splotch gene tested the hypothesis that offspring with a hereditary defect of neural-tube closure have other, unexpressed CNS defects, which may be elicited by teratological impulses.
(13) Genes which are unexpressed in somatic cells can be activated by injecting Xenopus laevis somatic nuclei into oocytes of Pleurodeles waltlii (Urodela).
(14) The level of the constitutively expressed myelomonocytic antigen, reactive with anti-Leu-M1, was not affected by IFN-gamma induction and three normally nonexpressed monocytic antigens, defined by monoclonal antibodies, remained unexpressed.
(15) The extensive demethylation was not always associated with changes in the level of RNA expression of the genes examined but was strongly correlated with an altered chromatin structure of the unexpressed alpha 1-globin gene and the muscle determination gene MyoD1.
(16) The mating-type information residing at the HML and HMR loci in Saccharomyces cerevisiae is kept unexpressed by the action of at least four MAR (or SIR) loci.
(17) Stress, fatigue, hormonal imbalances or lack of exercise can be the culprits, but there are more insidious reasons such as depression, poor body image, or having deep, unexpressed resentment towards a partner.
(18) Infertility and sexual dysfunction are real concerns for survivors that usually go unexpressed.
(19) The family physician can manage difficult family reactions and assist the family in making a decision by understanding that there are common reactions to loss and bereavement on the part of family members such as anger, denial, and feelings of helplessness; assessing whether problems arise from chronic family conflicts (marital, parent-child, or previous unresolved mourning) or are situation related (unexpressed feelings, how to tell others, need to feel they have done everything, overwhelming other stresses); and incorporating several specific techniques into their practices such as family conferences, accepting anger, involving anxious members in treatment planning, referral to self-help family groups, reframing the decision in terms of the patient's wishes, and negotiating mutually acceptable solutions when patient or family members disagree.
(20) The unexpressed paternally derived allele may, however, be transmitted to the next generation in the usual Mendelian manner and there be expressed.