(n.) A resinous substance produced mainly on the banyan tree, but to some extent on other trees, by the Coccus lacca, a scale-shaped insect, the female of which fixes herself on the bark, and exudes from the margin of her body this resinous substance.
Example Sentences:
(1) Fifty-six percent of Lac+ transconjugants were resistant to the S. cremoris M12R lytic phage.
(2) We have previously shown that about 90% of total Escherichia coli lac repressor synthesized in mammalian cells is located in the cytoplasm [Hu and Davidson, Cell 48 (1987) 555-566].
(3) Hfr strains B4 and B8 transfer the Escherichia coli chromosome in opposite directions, each transferring lac(+) as the last known marker.
(4) Combined with histological analysis, these results suggest a more rapid recovery of normal spermatogenesis after physical insult with LAC treatment.
(5) The F'lac+ episome of Escherichia coli origin was transferred by conjugation with frequencies of 10(-7) to 10(-5) from Erwinia amylovora to 14 out of 15 Salmonella typhimurium trp female parents.
(6) A protein identical in properties to FIII L. casei lac was isolated from clones of E. coli carrying this DNA insert.
(7) Only one monoclonal antibody strongly inhibited cAMP binding by CRP, and this was accompanied by a consequent strong inhibition of both lac DNA binding and abortive initiation by RNA polymerase.
(8) These ends were cloned separately in lambdapMu hybrid particles that derived from a single Mu lysogen in the lac Z part of lambdaplac5.
(9) The structure of F13, a plasmid containing lac, purE, and proC, has been determined by heteroduplex analysis.
(10) In this case, resistance markers were lost when the transductants became Lac- but the derivatives remained copper resistant.
(11) Circular dichroic studies and hydropathy profiling of the amino-acid sequence of this 'lac' permease suggest a secondary structure in which the polypeptide consists of 12 hydrophobic segments in alpha-helical conformation that traverse the membrane in zig-zag fashion connected by shorter, hydrophilic domains with most of the charged residues and many of the residues commonly found in beta-turns.
(12) The strength of the STII gene promoter was compared with that of the ompF and lac operons, which were similarly fused to the lacZ gene.
(13) From the results of potassium iodide quenching of fluorescence from the tryptophans, and from attempts to react the native lac repressor with dimethyl(2-hydroxy-5-nitrobenzyl) sulfonium bromide and 2-hydroxy-5-nitrobenzyl bromide, we propose that tryptophan residue 209 is involved in a conformational change of the protein upon binding of inducer, but does not come in direct contact with inducer.
(14) In cells growing with interdivision times of 27, 36, and 55 min, the F'lac replicated at various stages in the division cycle but always at approximately the same time as initiation of chromosome replication.
(15) Expression of the blood group carbohydrates was similar in follicular and radicular cysts but differed from that seen in odontogenic keratocysts by the failure to detect N-lac in the latter.
(16) The phage lambda operator OR1 and a 18 base pair symmetric lac operator have been studied by high resolution NMR.
(17) Deletions covering all or part of the transfer region, as well as of lac and of pif, were obtained in the course of this analysis.
(18) A Mud(Ap, lac) prophage has been shown to be inserted into the ptsH gene of E. coli.
(19) From transient expression studies of the fusion gene between the chloramphenicol acetyltransferase and lac genes, it was found that the lacCAP binding site could act as an enhancer activity on the SV40 promoter, and also as an additive enhancer activity to the SV40 enhancer in HeLa cells.
(20) Expression of chlD-lac was increased in cells grown with nitrate.
Lax
Definition:
(v. t.) Not tense, firm, or rigid; loose; slack; as, a lax bandage; lax fiber.
(v. t.) Not strict or stringent; not exact; loose; weak; vague; equivocal.
(v. t.) Having a looseness of the bowels; diarrheal.
(n.) A looseness; diarrhea.
Example Sentences:
(1) As Russian companies Polymetal, Polyus Gold and Evraz race to join Eurasian Natural Resources as FTSE100 companies, despite their murky practices, because of London's incredibly lax listing requirements, one future scenario is becoming clearer.
(2) These blood flow and temperature changes also occurred when ELV animals were subjected to simultaneous LAX.
(3) The universal credit scheme has been overseen by "alarmingly weak" management, with systems so lax that a secretary was allowed to authorise purchase orders worth £23m , according to the public accounts committee.
(4) Approximately 27% of the individuals had 1 lax joint, whereas only 3% possessed all 5 features.
(5) Traders, enabled by lax futures regulations, are perhaps the only people to see the bright side of the beating sun.
(6) The retracted lower eyelid is tight in contrast to the lax lower eyelid of the common involutional ectropion.
(7) Roundish cells, appearing to be myofibroblasts surrounded by a more lax connective tissue and elastic fibers, were found close to the Dacron threads.
(8) Although only flights to Sharm have been suspended, there is worry about Egyptian airports in general over alleged lax screening amid heightened fears over terrorism, a security source said.
(9) The coroner cited "inadequate" training and "lax" supervision as factors in the tragedies.
(10) These include eyelid laxity with or without atrophic orbicularis muscle tone, lax canthal tendons, hypoplastic malar eminences, unrecognized Graves' ophthalmopathy, unilateral high myopia, or the secondary blepharoplasty.
(11) Facebook Twitter Pinterest Donald Trump comments on death of Dwyane Wade’s cousin – video Welcome to Iowa, where Trump's purple patch could turn a blue state red Read more Pence rejected a suggestion by CNN host Jake Tapper that lax gun safety laws in his own state, Indiana, may be stoking violence in Chicago.
(12) Obama administration officials had promised to toughen the lax environmental regulations of the George Bush era.
(13) This decade, on the other hand, has been relatively lax when it comes to pumping out neuron-destroying musical inanity.
(14) The apparently lax oversight of the company's financial regime by the energy regulator was heavily criticised last week by Tim Yeo, the former chairman of parliament's energy and climate change committee.
(15) The examination of parental attitude in dealing with the possibility of accidents (instructive, lax or repressive) did not allow us to demonstrate in any significant way the influence of these attitudes on accidental morbidity.
(16) To date, they have been too lax, and moved too slowly, allowing racists a free rein.” Cooper called on “companies like Twitter to take stronger action against hate crimes on their platforms”.
(17) All emergency department, LAX first-aid station, and paramedic records were examined.
(18) Why so tough on skilled migrants and so lax on boat arrivals?
(19) Analysts have for years been complaining about what they believe to be lax accounting standards in Britain's travel industry, where one-off write-offs are not uncommon.
(20) In order to address those concerns the two companies gave up gate slots and takeoffs at major US airports including Washington DC’s Reagan national, New York’s LaGuardia, Boston's Logan and LAX in Los Angeles.