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Home/Anthropology/Mains PYQ/2023/Paper I/Applied & Forensic Anthropology
UPSC MainsAnthropology Optional Paper I 2023 15 Marks Model Answer Available

Personal Identification from Skeletal Remains — 2023 Paper I

Question · 2023 · Paper I · 15 Marks

Discuss various methods of personal identification based on skeletal remains.

Model Answer

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Introduction In forensic anthropology, personal identification from skeletal remains is a sequential process that involves reconstructing a biological profile and matching it with antemortem (before death) records. Standardized by scholars like Krogman and Işcan in The Human Skeleton in Forensic Medicine, the process is divided into two phases: General/Presumptive Identification (establishing the biological profile) and Positive Identification (absolute individualization).

Methods for General Identification (The Biological Profile) The 'Big Four' parameters narrow down the pool of missing persons:

  1. Sex Estimation (Highest Accuracy):
    • The Pelvis: Most reliable (up to 95% accuracy). Anthropologists use the Phenice Method, looking at the ventral arc, subpubic concavity, and the wider greater sciatic notch in females.
    • The Skull: Evaluated for robusticity, prominent supraorbital ridges, larger mastoid processes, and prominent nuchal crests (typically male).
  2. Age Estimation:
    • Juveniles: Highly accurate using dental eruption sequences and epiphyseal fusion of long bones.
    • Adults: More complex. Anthropologists use the Suchey-Brooks method (examining degenerative changes on the pubic symphysis), the auricular surface of the ilium, and cranial suture closure.
  3. Stature Estimation:
    • Measured using an osteometric board on intact long bones (femur, tibia).
    • Stature is calculated using population-specific mathematical models, most notably Trotter and Gleser’s regression equations or Pearson’s formula.
  4. Ancestry/Population Affinity:
    • Assessed via craniofacial morphometrics (e.g., nasal aperture width, shape of orbits). Modern forensic anthropologists use 3D digitizers and software like FORDISC for multivariate statistical analysis, though this is treated probabilistically, not as rigid race.

Methods for Positive Identification (Absolute Individualisation) Once the profile is established, specific unique markers are used to confirm identity legally:

  1. Forensic Odontology (Dentistry):
    • Teeth are the hardest substances in the body and survive fires and mass disasters. Identification is done by comparing antemortem dental records (fillings, root canals, missing teeth, unusual root morphology) with postmortem remains.
  2. Radiographic Comparison & Superimposition:
    • Frontal Sinus Pattern: The shape of the frontal sinus cavity (visible via X-ray) is completely unique to every individual, much like a fingerprint.
    • Craniofacial Superimposition: Overlaying a skull photograph or 3D scan onto a known antemortem photograph of the suspected victim to match anatomical landmarks.
  3. Skeletal Pathology and Trauma:
    • Medical Interventions: Surgical implants (like pacemakers or titanium pins) often have unique serial numbers.
    • Healed Traumas & Occupational Markers: Callus formations from healed fractures, congenital anomalies (e.g., spina bifida), or squatting facets can directly link remains to a person's known medical history or occupation.
  4. Molecular Methods (DNA):
    • If bone preservation permits, nuclear DNA is extracted from cortical bone or teeth. In degraded remains (like ancient bones or burn victims), Mitochondrial DNA (mtDNA) is used to establish maternal kinship.

Conclusion Skeletal identification is highly multidisciplinary. While isolated parameters like long-bone length only offer presumptive clues, positive medicolegal identification requires the convergence of osteological data, radiographic matches, and molecular evidence, transforming an anonymous skeleton back into a specific individual.

2026 Anthropometry in ergonomics. 2026 Health as a cultural construct. 2026 What is meant by a somatotype? Discuss the Heath-Carter anthropometric method, giving its advantages over that of Sheldon's method. How can somatotyping be applied in sports sciences? 2025 Examine the utility of human remains in forensic analysis. Discuss the facial reconstruction technique.

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UPSC Anthropology Optional 2023 — Paper I

28 questions

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10 Marks150 words
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1(c) Race and Ethnicity

10 Marks150 words
Syllabus: Paper I > 9.5 Race and racism > Race and ethnicity
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5(e) William Ogburn and Cultural lag

10 Marks150 words
Syllabus: Paper I > 6. Anthropological Theories > Cultural lag (Ogburn)
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