Prior to the meiosis process the cell's chromosomes are duplicated by a round of DNA replication, creating from the maternal and paternal versions of each chromosome ( homologs ) two exact copies, sister chromatids, attached at the centromere region.

Prior to creating Garfield, Davis worked for a local advertising agency, and in 1969, he began assisting Tom Ryan's comic strip, Tumbleweeds.

* Prior to the special's airing, the Kenner toy company considered creating a toy line based on the special.

Prior to creating the HRT, Coulson served on one of the FBI SWAT teams, more specifically a sniper team, and he later commanded one of the most active SWAT teams in the FBI.

Prior to Simon's learning the song, Bob Dylan had borrowed the melody and several lines from Carthy's arrangement in creating his song, " Girl from the North Country ", which appeared on The Freewheelin ' Bob Dylan ( 1963 ), Nashville Skyline ( 1969 ) ( together with Johnny Cash ), Real Live ( 1984 ) and The 30th Anniversary Concert Celebration ( 1993 ).

Prior to creating Made in Canada, Mercer was a popular fixture on another Salter Street series, This Hour Has 22 Minutes.

Prior to Musselman Library being built in the late 1970s, and due to Gettysburg's wet climate and drainage issues, the quad and library site would be prone to accumulating water, creating a large, muddy " lake " of sorts.

Prior to creating Pearls Before Swine, Pastis worked as a lawyer in California.

Prior to this, the land had been owned by developers intent on creating a mountain resort on its highest summit.

Prior to the Second World War, the area was mostly farmland, but was purchased by Barnsley Council in 1946 for the express purpose of creating a new housing estate.

Prior to creating Shuttleworth, Fellows appeared in Coronation Street as Les Charlton, a young biker chasing the affections of married Gail Platt ( then Tilsley ).

Prior to 4th edition, wearing armor or using a shield interferes with the somatic components of arcane spells ( but not divine spells ), preventing spellcasting prior to 3rd edition and creating a risk of arcane spell failure ( which causes the spell to be expended with no effect ) in 3rd and 3. 5 editions.

Prior to iptables, the predominant software packages for creating Linux firewalls were ipchains in Linux 2. 2 and ipfwadm in Linux 2. 0, which in turn was based on BSD's ipfw.

Prior to 1990, the working group had reconciled itself to creating a technical college ( which could be accredited ) alongside an unaccredited seminary, in preparation for a time when the government might accredit it as a religious studies department.

Prior to the start of the 2008 season, the CCWS Board authorized bankruptcy and Champ Car was absorbed into the IRL, creating one unified series for the national championship for the first time since 1978.

Prior to creating the installations for which Kabakov is known worldwide, Kabakov created fictional albums.

Prior to the development of Mega Man, Capcom was primarily known for creating arcade games, with many of the company's releases on consoles being ports of these titles.

Prior to the planetwide deactivation of Cybertron, Shockwave had been experimenting with the possibility of creating Transformers with multiple alternate modes.

Prior to this she was seconded to the Government Office for the South East creating a practical strategy for the regeneration of Thanet.

Prior to his nomination as Under Secretary the White House appointed Brown to head a transition team creating the Emergency Preparedness & Response Directorate within DHS.

Prior to World War I, the British explosives chemist Oswald Silberrad obtained British and U. S. patents for a series of plastic explosives called " Nitrols ", composed of nitrated aromatics, collodion, and oxidising inorganic salts.

Prior to the release of the TV series, the name Robotech was used by model kit manufacturer Revell on their Robotech Defenders line in the mid-1980s.

Prior to 2002, SIGGRAPH papers were printed in the SIGGRAPH Conference Proceedings series of publications.

Prior to working in the film industry, the Wachowskis wrote comic books for Marvel Comics ' Razorline imprint, namely Ectokid ( created by horror novelist Clive Barker ) in 1993 as well as writing for Epic Comics ' Clive Barker's Hellraiser and Clive Barker's Nightbreed comic series.

Prior to Michelangelo's involvement, the Overseers of the Office of Works of the Duomo ( Operai ), consisting mostly of members of the influential woolen cloth guild, the Arte della Lana, had plans to commission a series of twelve large Old Testament sculptures for the buttresses of the cathedral of Santa Maria Del Fiore.

Prior to the launch of its HD feed in 2004, some sitcoms and drama series were presented in this format, but now reality, talk, and game shows ( American Idol being the lone exception, as it is presented in High Definition ) are only presented in the enhanced definition widescreen mode.

The " anxious sweetness " of the fictional Abbot Heribert is set against the proud and ambitious Prior Robert, who Kollman argues " almost becomes the true villain of the series ".

When Ngô Quyền ( King of Vietnam ) ( 939 – 944 ) restoring sovereign power in the country, the next millennium Vietnam advanced by the accomplishments of a series of dynasties: Ngôs, Đinhs, Prior Lês, Lýs, Trầns, Hồs, Posterior Trầns, Later Lês, Mạcs, Trịnhs, Nguyễns, Tây Sơns and again Nguyễns.

Prior to implantation, the embryo remains in a protein shell, the zona pellucida, and undergoes a series of cell divisions.

Prior to launch, Soyuz 1 engineers are said to have reported 203 design faults to party leaders, but their concerns " were overruled by political pressures for a series of space feats to mark the anniversary of Lenin's birthday.

Prior to Kids Incorporated, Lynch and Biller created and produced a long-running music video series for TBS, Night Tracks.

Prior to this episode, Rod Serling had written an episode called " The Happy Place " as the pilot for his new series.

Prior to this they had reportedly saved an episode of Saturday Night Live by breaking through a picket line and hosting the show against the union's wishes ; the episode was a ratings smash the likes of which the series had not seen since the 1970s.

Prior to the establishment of a series of dams, the river dropped in, from Dalton to Bath.

Prior to the district's founding, the town had a series of public schools.

Prior to the development of the ISO 14000 series, organizations voluntarily constructed their own EMS systems, but this made comparisons of environmental effects between companies difficult and therefore the universal ISO 14000 series was developed.

Prior to his playing " Captain Michael Gallant " Crabbe had hosted a local NYC based children's film wraparound television series The Buster Crabbe Show.

Prior to this, UBS had operated through a series of correspondent banks and representative offices.

Prior to filming, Fry and Laurie were already a successful double act with TV series A Bit of Fry and Laurie and Jeeves and Wooster.

Prior to that, the Columbus Bullies of the American Football League ( 1940 ) played the Winnipeg Blue Bombers in 1941 in a three-game series, which Columbus won, 2 games to 1.

" Prior to her role as Grimbridge, Nelkin played only small cameo roles in television series like CHiPs and The Waltons.

" Prior to their creation, nearly all the previous villains in the series were considered too likable.