(n.) A state of being absent or withdrawn from a place or from companionship; -- opposed to presence.
(n.) Want; destitution; withdrawal.
(n.) Inattention to things present; abstraction (of mind); as, absence of mind.
Example Sentences:
(1) These data suggest that the hybrid is formed by the same mechanism in the absence and presence of the urea step.
(2) In the absence of atrial dilatation there was minimal stimulus for ANF secretion.
(3) This diagnosis was obscured by the absence of cutaneous, oropharyngeal, and respiratory involvement.
(4) Despite their absence, photoreceptors maintained a normal rate of OS assembly.
(5) It is likely that trunk mobility is necessary to maintain integrity of SI joint and that absence of such mobility compromises SI joint structure in many paraplegics.
(6) It was concluded that the significant factors affecting outcome are tumor cell type and presence or absence or mitoses.
(7) PMN were found to be nonpermissive for HSV replication and were unable to bind virus in the absence of antibody.
(8) Issues such as healthcare and the NHS, food banks, energy and the general cost of living were conspicuous by their absence.
(9) The results indicate that OA-bearing macrophages primed T cells and generated helper T cells, whereas the culture of normal lymphocytes with soluble OA in the absence of macrophages generated suppressor T cells.
(10) In the absence of an authentic target for the MASH proteins, we examined their DNA binding and transcriptional regulatory activity by using a binding site (the E box) from the muscle creatine kinase (MCK) gene, a target of MyoD.
(11) The patients were classified into two groups according to the presence (n = 166) or absence (n = 176) of documented episodes of atrial fibrillation preoperatively.
(12) Because of the short detachment interval, and the absence of underlying pathology or trauma, the recovery process described here probably represents an example of optimum recovery after retinal reattachment.
(13) Names, and the absence of them, could be important Facebook Twitter Pinterest Don’t look back … Daisy Ridley’s Rey and John Boyega’s stormtrooper Finn.
(14) This observation not only provides definitive evidence for the photogeneration of O2-, but also indicates that only a fraction of this species is transformed into H2O2 in the absence of SOD.
(15) The relative strength of the progressions varies with excitation wavelength and this, together with the absence of a common origin, indicates the existence of two independent emitting states with 0-0' levels separated by either 300 or 1000 cm-1.
(16) Peptide:N-glycosidase F removed both the asparagine-linked oligosaccharide chains of ricin B-chain in the absence of lactose.
(17) When labelled long-chain fatty acids or glycerol were infused into the lactating goat, there was extensive transfer of radioactivity into milk in spite of the absence of net uptake of substrate by the mammary gland.
(18) On the other hand, if we correct for the population of HMM with degraded light chain 2, the difference in the binding constants in the presence and absence of Ca2+ may be as great as 5-fold.
(19) In fact, the distribution of [3H]oleate between plasma membranes and unilamellar vesicles of lipids extracted from these membranes was in favor of the lipids, indicating the absence of a detectable amount of binding to a putative fatty acid binding protein in plasma membranes.
(20) Patients were selected for the severity of their malnutrition and for absence of other diseases.
Etiolation
Definition:
(n.) The operation of blanching plants, by excluding the light of the sun; the condition of a blanched plant.
(n.) Paleness produced by absence of light, or by disease.
Example Sentences:
(1) The plastocyanin content of etiolated bean leaves (Phaseolus vulgaris L.) was measured, and the development of the protein in response to light was followed.
(2) Microsomal membrane preparations from growing regions of etiolated pea stems catalyzed the transfer of [14C]fucosyl units from GDP-[U-14C]-L-fucose into exogenously added xyloglucan acceptors, as well as into endogenous xyloglucan.
(3) There were no detectable differences in the patterns of histone variants from immature grain (3-16 days after fertilization), from mature embryos, from coleoptiles and roots of 4-day-old, etiolated seedlings and from leaves of 10-day-old, light-grown seedlings.
(4) In this paper, we establish the presence of a G protein associated with the plasma membranes of the apical bud of etiolated peas.
(5) The rates of mitochondrial glycine oxidation estimated by CO2-release and glycine-bicarbonate exchange activities in fully greened tissues are approximately 10 times greater than those of etiolated pea leaves and potato tuber mitochondria.
(6) The development of PSII complex precedes that of PSI during the differentiation of B and M chloroplasts in expanding leaves of light-grown plants and during the greening of dark-grown etiolated seedlings.
(7) Short pulses of red light induce in etiolated barley seedlings an enhanced synthesis of plastidic benzoquinones and vitamin K1, which can be reverted by subsequent irradiation with short pulses of far-red.
(8) When etiolated soybean seedlings are treated with the synthetic auxin, 2,4-dichlorophenoxy-acetic acid, cells of the mature hypocotyl become swollen and proliferate abnormally.
(9) Cab2::Luc transcript accumulated in the expected patterns and luciferase activity was closely correlated to cab2::Luc mRNA abundance in both etiolated and green seedlings.
(10) Parallel to the decline in mRNA content, the de novo synthesis of leaf-specific thionins ceases rapidly upon illumination of etiolated seedlings.
(11) The activity of both enzymes was low in etiolated leaves of maize plants grown in the dark but increased 10-20-fold, together with chlorophyll, when leaves were illuminated.
(12) Ferredoxin is present in low concentrations in the leaves and cotyledons of 14-day-old etiolated beans (Phaseolus vulgaris L. var.
(13) Studies of the biogenesis of PS I during greening of etiolated plants showed that all of the CC I subunits accumulated to a detectable level prior to the appearance of the 17-kDa subunit of LHC I, the accumulation of which preceded those of the 24- and 21-kDa subunits of LHC I.
(14) By immunological techniques, the enzyme was shown to be absent in green as well as in etiolated E. gracilis cells, while being rapidly induced upon streptomycin bleaching of heterotrophically growing green cells.
(15) Fed-1 transcript levels in transgenic tobacco seedlings closely paralleled those of the native gene in pea buds when etiolated seedlings were transferred to white light.
(16) Putative protochlorophyllide reductase cDNA clones (252 and 113) were isolated from an etiolated-oat (Avena sativa) cDNA library.
(17) Furthermore, there are no factors in homogenates of etiolated leaves which inactivate amino acid incorporation into protein by chloroplasts.
(18) Application of auxin to 8-day old Arabidopsis plants, 4-day old etiolated seedlings, and suspension culture cells all resulted in enhanced Aux transcript levels.
(19) Synthesis of the polypeptide occurred during greening of etiolated cells exposed to light.
(20) Cloned cDNA and genomic sequences have been analyzed to deduce the amino acid sequence of phytochrome from etiolated Avena.