Anatomy & Histology · single question
In a forensic dental investigation, from which structure is DNA most reliably obtained?
Show answer and explanation
Correct answer: B. Dental pulp
The dental pulp is the richest source of DNA in a tooth for forensic identification. It contains blood vessels, nerves, and connective tissue cells with abundant nuclear DNA. The pulp is also well protected within the hard tooth structure, making it resistant to environmental degradation, fire, and decomposition — crucial advantages in forensic cases.
- A. ❌ Cementum has limited cellularity compared to pulp.
- B. ✅ CORRECT – The dental pulp is the preferred source of DNA for forensic identification due to its cellular richness and protection inside the tooth.
- C. ❌ Enamel contains no cells and therefore no nuclear DNA.
- D. ❌ The PDL provides some DNA but is subject to degradation and not the primary forensic source.
Practice Anatomy & Histology questions Anatomy & Histology study notes