Genetic elements Transcription-termination sequences

Figure 14.1 Parts, devices and systems. Parts are basic genetic elements, such as a promoter, a terminator, an origin of replication, a coding sequence e.g. for en mes as parts of pathways) or the like. Parts can be assembled into devices. For instance, a functional transcription unit consists of a promoter, a coding sequence and a terminator. Devices, such as the functional transcription unit for a selection marker, may be specified using appropriate s5mbols. Systems consist of various devices.

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