During prophase the chromosomes are identical chromatids connected at the center by a centromere, forming a X-shaped object. The distinguishing feature of prophase is the setuâ¦p of the mitotic spindle, which is used to maneuver the chromosomes about the cell.
Plumbing fixtures generally refers to parts of a plumbing system that have a distinct use and application. This differentiates fixtures from other types of plumbing parts, such as pipes, which only carry water. For example, a faucet is a type of fixture because it can be turned on to release water.
fixture unit. A measure of the probable discharge into the drainage system by various types of plumbing fixtures; expressed in units of cubic volume per minute; the value for a particular fixture depends on: its volume rate of drainage discharge; the time duration of a single drainage operation; and the average time between successive operations.