Interphase: 1  G1 phase: The period prior to the synthesis of DNA. In this phase, the cell increases in mass in preparation for cell division. Note that the G in G1 represents gap and the 1 represents first, so the G1 phase is the first gap phase.â. 2  S phase: The period during which DNA is synthesized.
East Petersburg is a borough in Lancaster County, Pennsylvania, United States. The population was 4,450 at the 2000 census. East Petersburg is located at 40Â°6â²0â³N 76Â°21â²10â³W / 40.1Â°N 76.35278Â°W / 40.1; -76.35278 (40.100079, -76.352649). According to the United States Census Bureau, the borough has a total area of 1.2 square miles (3.1 kmÂ²), all of it land.
East Pittsburgh is a borough in Allegheny County, Pennsylvania, about 11 miles (18 km) southeast of the confluence of the Monongahela and the Allegheny rivers at Pittsburgh. The population in 1900 stood at 2,883, and in 1910, at 5,615. As of the 2010 census, the borough population was 1,822, having fallen from 6,079 in 1940.