Transcription and Translation in Bacteria
Simultaneous transcription and translation of E. coli genes.
The long fiber running from top to bottom (green arrow ) is a segment of the E. coli chromosome.
Extending from it are polysomes (red arrow), the size of which generally increases from top to bottom.RNA polymerase. Thus
In eukaryotes, in contrast, while all transcription takes place in the nucleus, most (but not all) translation of mRNA occurs later in the cytosol.
(Electron micrograph courtesy of O. L. Miller, Jr., B. A. Hamkalo, and C. A. Thomas, Jr.)
22 April 2014