A cistronis strath of bass sequences
that codes for one polypeptide chain including adjacent control regions. it may
also code fortRNA, rRNA molecule or may perform other specific functions
including regulating functions of other cistrons.
This term has replaced the definition of
agene. Monocistronic transcription unit will have all the regulatory and coding
sequences for a single polypeptide, whereas polycistronic mayhave ceding
sequences for more than one polypeptide.
In eukaryotic cells almost the
messenger RNAs are monocistronic in prokaryotes, lacoperon cooing sequence
would be an example of polycistronic DNA region.
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