What's the difference between authenticity and iffy?

Authenticity


Definition:

  • (n.) The quality of being authentic or of established authority for truth and correctness.
  • (n.) Genuineness; the quality of being genuine or not corrupted from the original.

Example Sentences:

  • (1) Moreover in MIT-1, the size of the novel polypeptide was not that predicted of the precursor (44.9 kDa) but was about 39 kDa, the same size as the authentic GS gamma polypeptide in CYT-4.
  • (2) 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.
  • (3) Except in the case of the phenolic metabolite, structures were confirmed by direct comparison of electron impact mass spectra and chromatographic behaviour with those of authentic samples.
  • (4) These latter cardiovascular changes imply that the endotracheal pressure variations are the reflection of authentic inspiratory movements under the influence of the central nervous system.
  • (5) Several in vitro transcripts both larger and smaller than the authentic transcript were seen; presumably, these transcripts result from adventitious promoterlike elements in adjacent chlamydial DNA and may be responsible for the expression of the gene in E. coli.
  • (6) The amidolytic activity of [R275G]t-PA was comparable to that of authentic one-chain t-PA, and so was the activity of [R275L,K277L]t-PA, in which additional substitution of lysine residue 277 was carried out.
  • (7) 15, 961-969] prompted an investigation to confirm its authenticity.
  • (8) The authentic dolichyl phosphates (Dol-7-P, Dol-9-P, and Dol-11-P) were assayed relative to the natural dolichyl phosphate mixture from pig liver as acceptors for transglycosylation from nucleoside diphosphate sugars (glucose, mannose) by standardized membrane vesicle preparations from plants (Volvox) and animals (liver).
  • (9) The polypeptide encoded by the cDNA was synthesized by in vitro transcription and translation and identified by its comigration with authentic plakoglobin in two-dimensional gel electrophoresis.
  • (10) An authentic poly(ADP-ribose), with a mean chain length of approximately 30 ADP-ribose units, produced significant inhibition of the neutral protease isolated from macrophage chromatin.
  • (11) Fructose 2-phosphorothioate 6-phosphate was 10-100-fold less potent than authentic fructose 2,6-bisphosphate in stimulating 6-phosphofructo-1-kinase and pyrophosphate:fructose 6-phosphate phosphotransferase, but about 10 times more potent in inhibiting fructose 1,6-bisphosphatase.
  • (12) The separated cholesterol oxides were identified by comparing with authentic standards.
  • (13) Radioimmunoassays carried out on acidic extracts of the same organs confirm the molecular results and lead us to conclude to the presence of substances strongly related to MK in the ovotestis as well as in the circumoesophageal ganglia (COG), and to ascertain that the MK-positive tentacular collar cells do not contain authentic MK.
  • (14) In return, the government would finger freelance or rival operators so that the authorities could give the impression of an authentic enforcement operation.
  • (15) Comparison of elution patterns of authentic cholesterol and cholesteryl esters revealed that a mu Bondasphere reverse-phase C8 (300-A) column was more suitable than a corresponding reverse-phase C4 or C18 column in terms of rapidity and sensitivity.
  • (16) This polypeptide reacted specifically with rabbit antisera made against synthetic peptides corresponding to exposed regions of authentic p14 as predicted from the S1 cDNA sequence.
  • (17) An aesthetic of authenticity guides his approach to movie-making.
  • (18) But if there's a piece you particularly enjoyed, or found interesting or useful, please add a comment below or tweet us: @GdnSocialCare At the start of the year, the BBC screened fly-on-the-wall documentary series Protecting Our Children , an authentic portrayal of the difficult decisions and situations social workers face every day.
  • (19) I don’t think this ghostwritten book undermines her authenticity elsewhere.
  • (20) It is concluded that authentic hCG does occur in human seminal plasma, but only in about a third of samples.

Iffy


Definition:

Example Sentences:

  • (1) Before you know it you can have a few iffy results.
  • (2) Iffy grooming habits are the least of Wolfowitz's worries as he takes on the presidency of the World Bank.
  • (3) If Sampson had a case for arguing that Rafferty’s inital push had been made marginally outside the area, he could have had no complaints when England – due £35,000 per woman bonuses had they lifted the trophy – won a distinctly iffy penalty of their own.
  • (4) The keeper has looked iffy today but letting that in would have made him absolutely whiffy.
  • (5) Arsenal’s players performed a cancan on the pitch at Highbury as fans chanted: “We are unbeatable.” After an iffy first half, they had won 2-1 to complete a full season without defeat in the league.
  • (6) It’s looking certainly more iffy than it did even just a few days ago.
  • (7) It's looking like an iffy pot, or a two cushion escape.
  • (8) Because now Nando's has been caught ploughing money into all manner of legal but morally iffy offshore tax havens, and the fragile castle of ideology that I have painstakingly constructed for myself has crumpled.
  • (9) When they mentioned figures, they were very iffy about whether they were positive or negative.
  • (10) 11.12pm BST Tweets Rory Murphy (@bogotabandit2) so @HunterFelt prediction already looking a bit iffy.
  • (11) Their only post-promotion victory came at Sunderland in August but, after a few slightly iffy performances, Ramírez was back to his elegant, subtly incisive, intelligent best during last Saturday’s encouraging 0-0 draw at Arsenal .
  • (12) Berlind's theory of ovum transmigration in the etiology of tubal pregnancy is revived and brought into line with Iffy's delayed ovulation-reflux hypothesis.
  • (13) In other words: Tonight is your chance to go crazy conspiracy theorists, feel free to examine the game tape surrounding every iffy call as if it were the Zapruder film.
  • (14) It might be one of the oldest methods of preserving fruit, but make sure you put them in an airtight container, and if you've had them for a while, now's the time to use them up – I'm a bit iffy about keeping any ingredient for longer than six months.
  • (15) Jarvis isn't interested in who celebrities are shagging: "People might be a bit iffy, but that's between them and their conscience.
  • (16) He’s the one that’s been very iffy and about his role and what he would like to do about immigration.” Reckless made the comments when he was challenged to spell out what would happen to a Polish plumber if Ukip had its way on Britain leaving the EU.
  • (17) Indeed, according to Jim Ward's account, only an iffy penalty decision kept Rams – Isthmian League Cup winners that season – out of the final against Wimbledon.
  • (18) It was a bit iffy when Garvey got to the bullying (he said "strong-willed" and "tough" too many times, like he'd spent a weekend with Miliband, brainstorming positive terms for "bastard").
  • (19) Everyone: Isn't it a bit iffy hanging around with her again?
  • (20) Asked about calls for an election pact, he said: “The internal wrangling of the Conservative party is no longer my problem … There is something a little bit iffy about the idea of pacts, because it suggests politicians fixing things for their convenience.