The central dogma of molecular biology refers to the flow of genetic information within a biological system. It describes the basic mechanism by which genetic information is expressed in living organisms. According to the central dogma, the flow of genetic information occurs in the following order:
- DNA replication: The process by which DNA is duplicated before cell division.
- Transcription: The process by which a DNA sequence is copied into a messenger RNA (mRNA) molecule.
- Translation: The process by which the mRNA molecule is used as a template to synthesize a protein.
In summary, the central dogma states that DNA is the genetic material that is replicated before cell division. During transcription, the genetic information in DNA is transcribed into mRNA, which is then translated into a protein during the process of translation. The central dogma is a fundamental concept in molecular biology and underlies our understanding of the mechanisms by which genetic information is expressed in living organisms.
