While scientists do not always agree on how to classify organisms, molecular phylogenetics, which uses DNA sequences as data, has driven many recent revisions along more efficient, evolutionary lines and is likely to continue to do so.

While the bacteria had been killed, the DNA had survived the heating process and was taken up by the II-R strain bacteria.

While this state is highly stable, it can switch to the lytic pathway in the process of prophage induction, which occurs when the host SOS response is triggered by DNA damage.

While some preserved human remains may contain DNA, peat bogs such as Lindow Moss are generally poor for such a purpose, and it is unlikely that DNA could be recovered from Lindow Man.

While changes to the chromosome caused by X-ray and mustard gas were readily observable to the early researchers, other changes to the DNA induced by other mutagens were not so easily observable, and the mechanism may be complex and takes longer to unravel.

* While DNA contains deoxyribose, RNA contains ribose ( in deoxyribose there is no hydroxyl group attached to the pentose ring in the 2 ' position ).

While this makes it unsuitable for current ' DNA optimised ' life, it may have been acceptable for more primitive life.

While transcription was classically thought to occur only from DNA to RNA, reverse transcriptase transcribes RNA into DNA.

While being interviewed for a February 2009 issue of Rolling Stone magazine, Kurzweil expressed a desire to construct a genetic copy of his late father, Fredric Kurzweil, from DNA within his grave site.

While some TEs may confer benefits on their hosts, most are regarded as selfish DNA parasites.

While important genes participating in the DNA to RNA transcription, protein translation and DNA / RNA replication are retained.

While overall genome size, and by extension the amount of noncoding DNA, are correlated to organism complexity, there are many exceptions.

While replicating DNA, the eukaryotic DNA replication enzymes ( the DNA polymerase protein complex ) cannot replicate the sequences present at the ends of the chromosomes ( or more precisely the chromatid fibres ).

While identification of open reading frames within a DNA sequence is straightforward, identifying coding sequences is not, because the cell translates only a subset of all open reading frames to proteins.

While the individual strands of a linear double helix represent two distinct and separable molecules, this need not be true for circular DNA.

While the solution to a seven-node instance is trivial, this paper is the first known instance of the successful use of DNA to compute an algorithm.

While investigating how a culture of E. coli was able to stop the production of phages, Luria discovered that specific bacterial strains produce enzymes that cut DNA at certain sequences.

While it is currently unknown to what extent telomere erosion contributes to the normal aging process, maintenance of DNA in general, and telomeric DNA specifically, has emerged as a major consideration in aging theory.

While no larger than Dutch Springs, this mining supply town had the appearance of being far busier and more prosperous.

While five minutes ago the place had presented a scene of easy revelry, with Gyp Carmer a prominent figure, it was now as somnolent and dull as the day before payday.

While he was handling the multi-million-dollar funding operations of the Government he had to resort to borrowing small sums from friends.

While studying at the seminary in Andover, Adoniram had been working on a New Testament translation from the original Greek.

While Thomas' injured back led him to restrain his mount from its most violent gait he moved quickly enough when he had to.

While she was thus engaged, McFeeley questioned her about her whereabouts the previous day, any recollections she had of people hanging around, of overcurious delivery boys or repairmen, of strange cars cruising the neighborhood.

While they were told that there were some normal people who reacted differently than they had, they were also informed that there were other normals who reacted as they had.

While we had expected that compulsive children in the unstructured school setting would have difficulty when compared to those in the structured, we were surprised to find that the achievement of the high compulsives within the schools where the whole-word method is used in beginning reading compares favorably with that of the low compulsives.

While obliged to concede governments in East Europe allied with the Soviet Union instead of opposed to it, we thought we had preserved our social and economic system in East Europe.

While it had long been known in general, that `` the public is always wrong '', the use of odd-lot indices now puts the adage on a statistical basis.

While Protogeometric vases usually turn up, especially outside Greece proper, together with as many or more examples of local stamp, these `` non-Greek '' patterns had mostly vanished by the later ninth century.

While nowadays we recognize the fact that there are many causes for bleeding at the nose, not long ago a nosebleed was simply that, and treatment had little variation.

While a Senator, Kennedy had unsuccessfully pushed a bill to preserve the Belasco Theater, as well as the Dolley Madison and the Benjamin Taylor houses, all scheduled for razing.

While women had always attended ball games in small numbers ( it was the part of a `` dead game sport '' in the early years of the twentieth century to be taken out to the ball park and to root, root, root for the home team ), they had often sat in patient martyrdom, unable even to read the scoreboard, which sometimes seemed to indicate that one team led another by a score of three hundred and eighty to one hundred and fifty-one.

While they were away Blanche came into the office every morning, running things as she had always run them for Stanley, going through the week in a dazed stupor, getting things done automatically, out of habit.

) While Rotokas has a small alphabet because it has few phonemes to represent ( just eleven ), Book Pahlavi was small because many letters had been conflated — that is, the graphic distinctions had been lost over time, and diacritics were not developed to compensate for this as they were in Arabic, another script that lost many of its distinct letter shapes.

While the Ural – Altaic hypothesis can still be found in encyclopedias, atlases, and similar general references, it has not had any adherents in the linguistics community for decades.

While not all Southerners saw themselves as fighting to preserve slavery, most of the officers and over a third of the rank and file in Lee's army had close family ties to slavery.

While this increased Antoninus ’ s popularity, the frugal emperor had to debase the Roman currency.

While working on a second book, Alcott and Peabody had a falling out and Conversations with Children on the Gospels was prepared with help from Peabody's sister Sophia, published at the end of December 1836.

While Agrippina lived there or when she went on short visits to Rome, Nero had sent people to annoy her.

While he was heir-apparent — 1865 to 1881 — Alexander did not play a prominent part in public affairs, but allowed it to become known that he had ideas which did not coincide with the principles of the existing government.

While many companies have done fine work in developing sales personnel, much of it has been product rather than sales training.

While the interpretations that have been given are inferences only, they gain support from such comments as the following, which was made by one of the Kohnstamm-negative subjects who did not, on the first trial, perceive the tilt illusion.

While the U. S. Department of Labor has a program of projecting industry and occupational employment trends and publishing current outlook statements, there is little tangible evidence that these projections have been used extensively in local curriculum planning.

While availability of mortgage money has been a factor in encouraging apartment construction, the generally high level of prosperity in the past few years plus rising consumer income are among the factors that have encouraged builders to concentrate in the apartment-building field.

The Japanese want to increase exports to the U.S. While they have been curbing shipments, they have watched Hong Kong step in and capture an expanding share of the big U.S. market.

While cyanobacteria have been traditionally considered algae, recent works usually exclude them due to large differences such as the lack of membrane-bound organelles, the presence of a single circular chromosome, the presence of peptidoglycan in the cell walls, and ribosomes different in size and content from those of the Eukaryotes .< ref >

While much of the construction in these sites conforms to common Pueblo architectural forms, including Kivas, towers, and pit-houses, the space constrictions of these alcoves necessitated what seems to have been a far denser concentration of their populations.

While authors such as Emmanuel Le Roy Ladurie, Marc Ferro and Jacques Le Goff continue to carry the Annales banner, today the Annales approach has been less distinctive as more and more historians do work in cultural history, political history and economic history.

While he had been away in the Holy Land, even his regent, Archbishop John of Esztergom had been obliged to leave the country and his treasury had been exhausted.

While deploying a heat-flow experiment that had burned up with the Lunar Module Aquarius on Apollo 13 and had been attempted without success on Apollo 15, a cable was inadvertently snapped after getting caught around Young's foot.

While Greek states had in the past often been ruled by tyrants, this was a form of arbitrary government that was on the decline.

While the earliest artifacts date to the Middle Neolithic era, there have been documented habitations in Attica from the Early Neolithic ( 6th millennium BC ).

While the term — literally meaning " sailing the air "— originally referred solely to the science of operating the aircraft, it has since been expanded to include technology, business and other aspects related to aircraft.

While tanks are seen as being integral to armoured warfare, in forces with a remit of power projection deployability has always been a consideration, which conventional main battle tanks cannot provide.

While there is no scientific evidence for the cryptid's existence, there have been over 300 reported sightings.

While paracetamol is usually taken orally or rectally, an intravenous preparation introduced in 2002 has been shown to improve pain relief and reduce opioid consumption in the perioperative setting.

While the use of paracetamol, aspirin, ibuprofen, naproxen and other NSAIDS concurrently with weak to mid-range opiates ( up to about the hydrocodone level ) has been said to show beneficial synergistic effects by combatting pain at multiple sites of action, several combination analgesic products have been shown to have few efficacy benefits when compared to similar doses of their individual components.

While the term " anti-globalization " arose from the movement's opposition to free-trade agreements ( which have often been considered part of something called " globalization "), various participants contend they are opposed to only certain aspects of globalization and instead describe themselves, at least in French-speaking organisations, as " anti-capitalist ", " anti-plutocracy ," or " anti-corporate.