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Gene expression
ConceptCells use genetic information to produce functional RNA and, for many genes, proteins.
Explanation or usage
For protein-coding genes, transcription produces an RNA transcript from DNA information, and translation uses messenger RNA to assemble a polypeptide. Regulation at several stages can change how much product is made. Not every gene encodes a protein, and copying DNA for cell division is a different process.
Common misunderstandings
Transcription makes a protein directly.
Every gene encodes a protein.
In Guyton and Hall Textbook of Medical Physiology E-Book (Guyton Physiology)
General context reviewed · book attribution and sources pending
Topic context: genetic control of protein synthesis and cell function.