Which bone is specifically assessed for DNA extraction in forensic contexts?

The iliac crest is specifically assessed for DNA extraction in forensic contexts due to its rich and accessible supply of bone marrow, which contains a high concentration of DNA. This makes the iliac crest particularly valuable for forensic anthropologists and other forensic experts when they need to extract genetic material for identification purposes.

Bones, such as the femur, patella, and sternum, can also provide DNA; however, the iliac crest has distinct advantages. The iliac crest is relatively flat and broad, allowing for easier access when performing procedures to extract bone marrow. Additionally, the bone marrow from the iliac crest is less likely to be contaminated compared to DNA obtained from other bones that might have been exposed to environmental factors or trauma. Furthermore, it contains a better preservation of nuclear DNA, especially when dealing with skeletal remains that may have degraded over time.

Due to these characteristics, the iliac crest is a preferred site for forensic DNA extraction, especially in cases of unidentified remains or in situations requiring human identification through genetic analysis.