(a.) Two-threaded; involving the use of two threads; as, bifilar suspension; a bifilar balance.
Example Sentences:
(1) Cells were incubated for at least three doublings to approximate bifilar substitution.
(2) The disappearance of bifilar enzyme-sensitive sites was found to be normal in cells from individuals with Fanconi's anemia, Cockayne's syndrome, dyskeratosis congenita and the variant form of xeroderma pigmentosum.
(3) DNA sequence analysis revealed the presence of closely opposed runs of pyrimidines at sites of more frequent bifilar cleavage.
(4) Cells that contain only unifilar BrdUrd-DNA are resistant to black light, whereas cells that contain bifilar BrdUrd-DNA are extremely photosensitive.
(5) Chinese hamster chromosomes were differentially substituted with 50 microM 5-bromodeoxyuridine (BrdU) to obtain chromosomes with bifilarly and unifilarly substituted (BB-TB) and unifilarly and non-substituted (TB-TT) chromatid constitutions.
(6) The rate of bifilar enzyme-sensitive site removal in XP cells assigned to complementation group C was reduced by an amount similar to that observed for the repair of isolated dimers.
(7) We propose that during the HB pretreatment, more DNA-protein cross-linkings are induced in BrdU bifilarly substituted than the unifilarly substituted chromatids.
(8) Cesium chloride equilibrium gradient centrifugation provides estimates both of the percent thymidine replacement by BrdUrd and of the symmetry (unifilar versus bifilar) of BrdUrd incorporation into the chromosomal DNA duplexes.
(9) We attribute this differential contrast primarily to the lesser condensation of the bifilarly substituted chromatid.
(10) The greater the percentage BrdU substitution, the larger was the enhancement ratio for survival and radiation-induced strand breaks in both monofilarly and bifilarly substituted cells.
(11) This dense DNA has been previously interpreted as being bifilarly substituted with BrdU and hence evidence that sister chromatid exchange (SCE) formation proceeds via the Holliday model of recombination.
(12) and SSC treatment together resulted in differentiation, with dark-staining unifilarly (TB) chromatids in the LM corresponding to raised loosely packed loops in the SEM and pale bifilarly (BB) chromatids corresponding to the smooth compact flattened SEM appearance.
(13) The degree of radiosensitization for both survival and rates of alkaline and neutral elution are dependent on percentage BrdU substitution and independent of whether BrdU is in one strand only (monofilar) or both strands (bifilar) of the DNA duplex: e.g., for 16% BrdU substitution distributed either monofilarly or partially bifilarly, there is an enhancement factor for Do of 1.55.
(14) Using filter elution techniques, the enhancement ratios (ER) for double strand breaks (SB) were 1.5 and 2.0 for unifilar and bifilar substitution, respectively, whereas the enhancement ratio for single strand breaks were both greater than or equal to 2.1.
(15) After staining with Giemsa, unifilarly BrdU-substituted chromatids stained faintly and bifilarly substituted chromatids stained darkly.
(16) The bifilarly substituted chromatid is dramatically longer than the unifilar one.
(17) Double-wrapping, or systems of bifilar windings, can also help control for the non-magnetic effects of the electric coils used in many experiments.
(18) The density of spikes of spike output (SO) recorded by means of three bifilar semimicroelectrodes simultaneously implanted in the biceps brachii has been studied during elbow flexions performed against inertia and with a variable velocity (anisometric, anisotonic contractions).
(19) The comparison of ssb, dsb, and uracil production in bifilar and monofilar DNA with similar BU substitution showed no significant difference between the two DNA systems (ColE 1, M 13), indicating that the location of BU molecules in one or in both DNA strands will not lead to a different number of lesions after UV313 exposure.
(20) These studies showed that the "twisted tubule" which makes up the neurofibrillary tangle in many pathological situations is a bifilar helix made up of 130 A filaments.
Two
Definition:
(n.) One and one; twice one.
(n.) The sum of one and one; the number next greater than one, and next less than three; two units or objects.
(n.) A symbol representing two units, as 2, II., or ii.
Example Sentences:
(1) Thirty-two patients (10 male, 22 female; age 37-82 years) undergoing maintenance haemodialysis or haemofiltration were studied by means of Holter device capable of simultaneously analysing rhythm and ST-changes in three leads.
(2) All transplants were performed using standard techniques, the operation for the two groups differing only as described above.
(3) Patients with papillary carcinoma with a good cell-mediated immune response occurred with much lower infiltration of the tumor boundary with lymphocyte whereas the follicular carcinoma less cell-mediated immunity was associated with dense lymphocytic infiltration, suggesting the biological relevance of lymphocytic infiltration may be different for the two histologic variants.
(4) Two of the largest markets are Germany and South Korea, often held up as shining examples of export-led economies.
(5) Although the mean values for all hemodynamic variables between the two placebo periods were minimally changed, the differences in individual patients were striking.
(6) The authors have presented in two previous articles the graphic solutions resembling Tscherning ellipses, for spherical as well as for aspherical ophthalmic lenses free of astigmatism or power error.
(7) Clonal abnormalities involving chromosomes 3 and 21 were noted in two patients.
(8) After two weeks all animals were killed and autopsies of the animals were performed.
(9) No differences between the two substances were observed with respect to side effects and general tolerability.
(10) Anti-corruption campaigners have already trooped past the €18.9m mansion on Rue de La Baume, bought in 2007 in the name of two Bongo children, then 13 and 16, and other relatives, in what some call Paris's "ill-gotten gains" walking tour.
(11) We considered the days of the disease and the persistence of symptoms since the admission as peculiar parameters between the two groups.
(12) Between 22 HLA-identical siblings and 16 two-haplotype different siblings, a significant difference in concordance of reactions for the B-cell groups was noted.
(13) Cyclic AMP stimulated phosphorylation by [gamma-32P]ATP of two proteins of apparent Mr = 20,000 and 7,000 that were concentrated in sarcoplasmic reticulum, but the stimulation was markedly dependent on the presence of added soluble cyclic AMP-dependent protein kinase.
(14) The constitution of chromosomes in the two plasmacytomas remained remarkably stable in their homogeneous modal population.
(15) The previous year, he claimed £1,415 for two new sofas, made two separate claims of £230 and £108 for new bed linen, charged £86 for a new kettle and kitchen utensils and made two separate claims, of £65 and £186, for replacement glasses and crockery.
(16) At pH 7.0, reduction is complete after 6 to 10 h. These results together with an earlier study concerning the positions of the two most readily reduced bonds (Cornell J.S., and Pierce, J.G.
(17) Gel filtration of the 40,000 rpm supernatant fraction of a homogenate of rat cerebral cortex on a Sepharose 6B column yielded two fractions: fraction II with the "Ca(2+) plus Mg(2+)-dependent" phosphodiesterase activity and fraction III containing its modulator.
(18) A diplomatic source said the killing appeared particularly unusual because of Farooq lack of recent political activity: "He was lying low in the past two years.
(19) However, as the same task confronts the Lib Dems, do we not now have a priceless opportunity to bring the two parties together to undertake a fundamental rethink of the way social democratic principles and policies can be made relevant to modern society.
(20) The findings suggest that these two syndromes are associated with dysfunction at two different sites within the frontal lobes.