Polycistronic Transcription Units are Common In

Question

Polycistronic transcription units are common in
A) Archaea.
B) Bacteria.
C) Eukarya.
D) both Archaea and Bacteria.

Accepted Answer

Polycistronic transcription units are commonly found in the genomes of both Archaea and Bacteria. These units encode multiple genes within a single mRNA molecule and are often found in operons that encode proteins with related functions. In contrast, eukaryotic genes are typically monocistronic, encoding a single protein per mRNA molecule.