Changes

Prokaryotic DNA lacks histones (packaging proteins) and molecules have direct access to DNA. They have a junk-free genome, transcribed by just one RNA polymerase. Transcription leads to translation with no intermediate processing, which allows several genes to be encoded in a single transcriptional unit (a polycistron). They have small (70S) ribosomes.

Prokaryotic DNA lacks histones (packaging proteins) and molecules have direct access to DNA. They have a junk-free genome, transcribed by just one RNA polymerase. Transcription leads to translation with no intermediate processing, which allows several genes to be encoded in a single transcriptional unit (a polycistron). They have small (70S) ribosomes.