RNA polymerase: An enzyme that is responsible for making rna from a dna template.
Ribosome: a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cells.
Promoter: A region of DNA that initiates transcription of a particular gene.
Regulator: Any organism that can maintain a constant internal environment largely independently of the external environment.
Hope this helps! Please give me brainliest!
