A dogma is a core belief or set of ideas. Cell replication, transcription and translation together are called the central dogma. In 1958, scientist Francis Crick first proposed the idea of the central dogma. Barry Commoner gave it the cyclic form in 1968. It is now considered a fundamental principle of molecular genetics. Francis Crick considers three different paths to be the basic tenets of the Central Dogma.
1. Replication: Through replication, another DNA is created from DNA. DNA replication occurs in the S phase of the cell cycle.
2. Transcription: mRNA is produced from DNA through transcription. Transcription occurs inside the cell nucleus.
3. Translation: Protein is produced from mRNA through translation. Translation occurs in the cytoplasm of the cell.