Yes, teeth contain DNA. In fact, teeth are an excellent source of DNA, especially in forensic investigations. This is because the pulp of a tooth, which contains blood vessels and nerves, is a rich source of both genomic DNA (found in the nucleus) and mitochondrial DNA (mtDNA).
Teeth are particularly useful for DNA analysis because they are highly resistant to degradation. This makes them a valuable resource for identifying individuals from degraded or fragmented remains, such as those found at crime scenes or in mass disaster situations.
- Forensic Applications: Teeth are commonly used for identification in forensic investigations due to their durability and the presence of DNA within their pulp.
- Genetic Genealogy: DNA extracted from teeth can also be used for genetic genealogy purposes, allowing individuals to trace their ancestry and connect with relatives.
- Ancient DNA Research: Scientists can extract and analyze DNA from ancient teeth, providing valuable insights into the evolution and history of human populations.
While the enamel, the outermost layer of the tooth, does not contain DNA, the dentin and pulp are rich sources of genetic material. This makes teeth a valuable source of information for various scientific and investigative purposes.
