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During morphogenesis, totipotent stem cells become the various pluripotent cell lines of the embryo, which in turn become fully differentiated cells.
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During and morphogenesis
During later maturation stages, PDGF signalling has been implicated in tissue remodelling and cellular differentiation, and in inductive events involved in patterning and morphogenesis.
During the morphogenesis of the embryonic lung, epithelial cells express netrin 1 and netrin 4.
During and stem
During the next spring or summer, the stem of the biennial plant elongates greatly, or " bolts ".
During the second year of the plant's life, a long, leafy stem from 50 to 255 centimeters tall grows atop the roots of healthy plants.
During the Nineteenth dynasty Hapi is often depicted as a pair of figures, each holding and tying together the long stem of two plants representing Upper and Lower Egypt, symbolically binding the two halves of the country around a hieroglyph meaning " union ".
During the 6th century Bavaria and Alamannia became stem duchies of the Frankish Kingdom.
During the massacre, his mother was shot by Mañé whilst she tore a banana stem apart in his banana plantation.
During his chairmanship at NYU, he was also known as an early and strong advocate of wider stem cell treatments.
During its first year it only grows leaves, but during its second year its fluted stem can reach a height of two meters ( or six feet ).
During the general election against former state senator and real estate agent Dino Rossi, Gregoire proposed a major initiative in life sciences, especially by increasing state funding for embryonic stem cell research.
During the course of the following months, relief supplies from the UN were air dropped to stem the starvation of many in Nuba Mountains.
During the years immediately preceding, after an unsuccessful annexation suit against Henrico County to the north, the city successfully annexed of neighboring Chesterfield County to its south on January 1, 1970 in what was later determined in federal courts to be an attempt to stem the white flight that was occurring, as well as dilute black political strength.
During hematopoiesis, some of these stem cells differentiate into monocytes and travel from the bone marrow to the brain, where they settle and further differentiate into microglia.
During this time he has helped to modernise and lead the Board, gaining the confidence of the public and governments of all nations, as a truly respected and highly regarded organisation and helping to stem the scourge of narcotic abuse and trafficking.
During the last 20 years stem cells and adult cells derived from different tissues such as blood, bone marrow, muscle, brain, hair, skin, etc., have been characterized, grown in culture and tested in animals and in the clinic for a diverse number of illnesses.
During the war, the 9th Battalion, along with the rest of the 7th Brigade was sent to New Guinea to help stem the tide of the Japanese advance.
During and cells
During this stage of the cell cycle this makes the individual chromosomes in many cells visible by optical microscope.
During operation of electrochemical cells, chemical energy is transformed into electrical energy and is expressed mathematically as the product of the cell's emf and the electric charge transferred through the external circuit.
During the fermentation process, yeast cells in the must continue to convert sugar into alcohol until the must reaches an alcohol level of 16 %– 18 %.
During these stages, two centrosomes, containing a pair of centrioles in animal cells, migrate to the two poles of the cell.
During this time disjunction occurs, which is one of the processes leading to genetic diversity as each chromosome can end up in either of the daughter cells.
During embryonic development, cells are restricted to different layers due to differential affinities.
During normal calcification, a major influx of calcium and phosphate ions into the cells accompanies cellular apoptosis ( genetically determined self-destruction ) and matrix vesicle formation.
During gastrulation the cells of the blastula undergo coordinated processes of cell division, invasion, and / or migration to form two ( diploblastic ) or three ( triploblastic ) tissue layers.
During organogenesis, molecular and cellular interactions between germ layers, combined with the cells ' developmental potential, or competence to respond, prompt the further differentiation of organ-specific cell types.
During the process of epithelial differentiation, cells become cornified as keratin protein is incorporated into longer keratin intermediate filaments.
During the early Silurian, they developed specialized cells, which were lignified ( or bore similar chemical compounds ) to avoid implosion ; this process coincided with cell death, allowing their innards to be emptied and water to be passed through them.
During a sharp wave, as many as 5 – 10 % of the neural population may emit action potentials during a period of 50 ms ; many of these cells emit bursts of several action potentials.
During embryological development, new capillaries are formed by vasculogenesis, the process of blood vessel formation occurring by a de novo production of endothelial cells and their formation into vascular tubes.
During the brain development, reelin is secreted in the cortex and hippocampus by the so-called Cajal-Retzius cells, Cajal cells, and Retzius cells.
During exercise, the water level retracts due to the increase in concentration of lactic acid in the muscle cells.
During plasma donation, the red blood cells are pumped back into the body right away and only the plasma is collected.
During each heartbeat, a healthy heart will have an orderly progression of a wave of depolarisation that is triggered by the cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventracular node and then spreads all over the ventricles.
During gestation, the cells of the primordial gonad that lie along the urogenital ridge are in a bipotential state, meaning they possess the ability to become either male cells ( Sertoli and Leydig cells ) or female cells ( follicle cells and Theca cells ).
During and become
During the past four hundred years, Virginia Dare has become a prominent figure in American myth and folklore, symbolizing different things to different groups of people.
During this time he discovered comic strips like Pogo, Krazy Kat, and Charles Schulz ' Peanuts which subsequently inspired and influenced his desire to become a professional cartoonist.
The effort was sufficiently complete that during the summer of 1973 the Unix kernel for the PDP-11 was rewritten in C. During the 1972 – 73 period there was a need to port to Honeywell 635 and IBM 360 / 370 machines, so Mike Lesk wrote the " portable I / O package " which would become the C " standard I / O " routines.
During the governorship of Montagu Norman, which lasted from 1920 to 1944, the Bank made deliberate efforts to move away from commercial banking and become a central bank.
During sexual arousal, breast size increases, venous patterns across the breasts become more visible, and nipples harden.
During the past few centuries of detailed, scientific study of the Bronze Age, it has become clear that on the whole, the use of copper or bronze was only the most stable and therefore the most diagnostic part of a cluster of features marking the period.
During a second voyage in 1494, Columbus passed along the south coast of the island, landing at various inlets including what was to become Guantánamo Bay.
During the course of the second Labour government, Attlee had become increasingly disillusioned by Ramsay MacDonald, whom he came to regard as vain and incompetent, and later wrote scathingly of him in his autobiography.
During the middle of the 20th century the French reluctantly began to accede to reasonable requests, and in 1946 Comoros had become a separately administered colony from Madagascar.
During the 2008 Canadian parliamentary dispute, two of Canada's opposition parties signed an agreement to form what would become the country's second coalition government since Confederation if the minority Conservative government was defeated on a vote of non-confidence ; unseating Stephen Harper as Prime Minister.
During this period, which has become known as baseball's dead-ball era, Cub infielders Joe Tinker, Johnny Evers, and Frank Chance were made famous as a double-play combination by Franklin P. Adams ' poem Baseball's Sad Lexicon.
During the Gunpowder Age, armored cavalry become obsolete.
During the late Neolithic henge sites were constructed, single burials began to become more commonplace and by the Bronze Age it is possible that even where chambered cairns were still being built they had become the burial places of prominent individuals rather than of communities as a whole.
During early development of the vertebrate embryo, a longitudinal groove on the neural plate gradually deepens and the ridges on either side of the groove ( the neural folds ) become elevated, and ultimately meet, transforming the groove into a closed tube, the ectodermal wall of which forms the rudiment of the nervous system.
During transcription, all intron RNA is cut from the RNA primary transcript and the remaining pieces of the RNA primary transcript are spliced back together to become mRNA.
During the period c. 500-450 BC, the tin deposits seem to have become more important, and fortified settlements appear such as at Chun Castle and Kenidjack Castle, to protect both the tin smelters and mines.
During this time a variety of cultures and territories influenced what has become the Republic of Ecuador.
During the wet seasons these roads typically become impassable.
During her imprisonment, Eleanor had become more and more distant with her sons, especially Richard ( who had always been her favorite ).
During the preservation / conservation debate the term preservationist become to be seen as a pejorative term.
During this period it grew to become one of the largest cities in the world and home to an urban culture centered on the notion of a " floating world ".
During his years at the Scuola Normale Superiore, Fermi teamed up with a fellow student named Franco Rasetti with whom he would indulge in light-hearted pranks and who would later become Fermi's close friend and collaborator.
During this time folk music began to become enmeshed with political and social activism themes and movements.
During the 1960s and 70s, Italian filmmakers Mario Bava, Riccardo Freda, Antonio Margheriti and Dario Argento developed giallo horror films that become classics and influenced the genre in other countries.
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