Central Dogma

Definition of Gene

Proof that DNA
is Genetic Material

DNA Structure

Restriction Modification

Nucleic Acid

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Central Dogma

The following diagram displays the flow of genetic information from DNA to the protein. This can be interpreted in genetic terms by saying that information contained in genes (DNA) is eventually expressed as the phenotype (protein).

Compartmentalization of the Central Dogma of Molecular Genetics

The organelles of plants are both of a prokaryotic (chloroplast and mitochondria) and eukaryotic (nucleaus) origin. The organelles contain DNA as well as the nucleus. Also, found within each organelle are all of the steps of the central dogma of molecular genetics. Reverse transcription has not been demonstrated in the organelles, but plant mitochondria undergo mRNA editing, a feature not known for nuclear expressed genes.

Copyright © 1998. Phillip McClean