Yes, there is DNA in a rib.
Ribs as a Source of DNA
Ribs, like other bones in the body, contain DNA within their cells. This DNA can be extracted and analyzed for various purposes, including identification in forensic science and understanding the genetic makeup of an individual.
Types of DNA in Ribs
- Nuclear DNA: This type of DNA resides in the nucleus of cells. Nuclear DNA is inherited from both parents and provides a unique genetic fingerprint.
- Mitochondrial DNA: In addition to nuclear DNA, cells also contain mitochondrial DNA which is inherited maternally. However, this is present in lower quantities.
DNA Yield and Typing Success
A study has demonstrated that ribs are a reliable source of DNA. According to research, the first ribs yielded the same DNA yields as well as STR typing success as the 12th thoracic vertebrae. This confirms that ribs provide sufficient quantity and quality of DNA for forensic and research applications.
| Bone | DNA Yield | STR Typing Success |
|---|---|---|
| First Rib | Comparable | Comparable |
| 12th Thoracic Vertebrae | Comparable | Comparable |
This data demonstrates the suitability of ribs for DNA analysis.
- Forensic Analysis: Rib DNA is crucial in identifying human remains, especially in cases where other tissues are not available.
- Research: The DNA from ribs can also be used in genetic research to study populations, heritable diseases, and other aspects of human genetics.
