Therefore, while bacteria accomplish transcription of all genes using a single kind of RNA polymerase, the use of different sigma factor subunits provides an extra level of control. Eukaryotic ...

Eukaryotic RNA polymerases use a number of essential cofactors (collectively called general transcription factors), and one of these, TFIID, recognizes the TATA box and ensures that the correct ...

In eukaryotic cells like human cells, transcription occurs in the nucleus ... possess 70S ribosomes (where S refers to the ...