Historic Downtown Bridgeport. In 2006 Bridgeport was named a Texas Main Street City and has been recognized as a National Main Street City since 2007. This prestigious recognition shows that the City and its residents are committed to preserving our historic business district, both architecturally and economically.
The cell nucleus contains the majority of the cell's genetic material in the form of multiple linear DNA molecules organized into structures called chromosomes. Each human cell contains roughly two meters of DNA.
Additional genes are located in mitochondria and chloroplasts. â¢ The nucleus is separated from the cytoplasm by a double membrane called the nuclear envelope. â¢ Within the nucleus, the DNA and associated proteins are organized into discrete units called chromosomes, structures that carry the genetic information.