The dimensions of the White House are as follows. The length is 168 feet (51.2 meters). The width is 152 feet with the porticoes. Without the porticoes it is 85 feet 6 inches (26.1 meters). The height is 60 ft 4 inches on the north. On the south it is 70 feet. The fence of the White House covers 18 acres.
A mobility shift assay is electrophoretic separation of a proteinâDNA or proteinâRNA mixture on a polyacrylamide or agarose gel for a short period (about 1.5-2 hr for a 15- to 20-cm gel).
Structural mobility is a kind of vertical mobility. Structural mobility refers to mobility which is brought about by changes in stratification hierarchy itself. It is a vertical movement of a specific group, class or occupation relative to others in the stratification system. It is a type of forced mobility for it takes place because of the structural changes and not because of individual attempts. For example historical circumstances or labor market changes may lead to the rise of decline of an occupational group within the social hierarchy.