VAID'S ICS – Best UPSC Anthropology Coaching in Delhi Since 1985

Comprehensive Classroom Course · Admissions openRegister now
+91 93113 37737
  • +91-93113 37737, +91-99999 46748
  • 73(FF), Old Rajender Nagar Market, Delhi - 110060
  • MON to SUN 9.00 am - 6.00 pm
Facebook Youtube Instagram
Menu
Enquire Now
Home/Anthropology/Mains PYQ/2026/Paper I/Kinship
UPSC MainsAnthropology Optional Paper I 2026 15 Marks Model Answer Available

Incest Taboo and the Development of Kinship Systems — 2026 Paper I

Question · 2026 · Paper I · 15 Marks

Discuss 'incest taboo' as the basis of development of kinship systems in human societies.

Model Answer

VAID ICS
Approach

  • Demand of Question: Explain how incest prohibition can generate exogamy, affinity and alliance while assessing alternative explanations.
  • Structuring the Response: Define incest taboo → Lévi-Strauss nature/culture → exogamy/alliance → restricted/generalised exchange → alternatives → critique.
  • Key Dimensions to Cover: Incest prohibition, spouse exchange, affinal ties, cross-cousin marriage, Westermarck, Tylor, biological and functional explanations.

 

Model Answer

Introduction: The incest taboo is the culturally defined prohibition of sexual or marital relations between specified categories of close kin. Its range varies across societies, showing that “incest” is not simply a biological distance rule. Its theoretical importance lies in how prohibition can turn the domestic group outward toward wider social relations.

Lévi-Strauss and alliance:

In The Elementary Structures of Kinship, Claude Lévi-Strauss treated the incest prohibition as the negative expression of a positive social rule. If marriage with certain close kin is forbidden, spouses must be obtained beyond that circle. Marriage therefore creates affinal ties, reciprocity and durable alliances between families, lineages or clans.

  • Restricted exchange links two groups through reciprocal spouse exchange.
  • Generalised exchange creates a circulating chain among three or more groups, producing a broader network of alliance.
  • Prescriptive marriage systems demonstrate that some relatives may be prohibited while others—such as particular cross-cousins—may be preferred, proving that kin categories are culturally organised.

The incest taboo also marks, for Lévi-Strauss, a transition from nature to culture: sexuality is biologically possible, but culture regulates it through rules of marriage and exchange.

Alternative explanations:

  • Westermarck proposed that close childhood co-residence tends to produce sexual aversion.
  • Biological explanations stress increased risks associated with close inbreeding.
  • E. B. Tylor emphasised the political value of exogamy—“marry out or be killed out”—because outside marriage creates allies.
  • Functional arguments suggest incest avoidance prevents role conflict inside the family.

Critical evaluation: Incest prohibition and exogamy are not identical, and the taboo alone cannot explain all kinship. Descent, residence, inheritance, property and reproduction also organise kin relations. Feminist critiques additionally question theories that represent women chiefly as objects of exchange.

Conclusion: Incest prohibition is best understood as a major system-building rule: by regulating who cannot marry whom, it generates affinity and intergroup alliance, helping extend kinship beyond biological relatedness.

2025 Theoretical significance of Purum kinship-system. 2024 Critical perspective on avoidance and joking relationship 2023 Critically discuss A.L. Kroeber's contribution to kinship studies. 2022 Discuss how the rules of descent contradict the principles of residence in matrilineal society, mentioning suitable examples ?

Want feedback on your answer?

Join the Anthropology workshop or get structured answer-writing guidance from VAID ICS.

Join Workshop Contact VAID ICS

UPSC Anthropology Optional 2026 — Paper I

28 questions

5(d) Anthropometry in ergonomics.

10 Marks150 words
Syllabus: Paper I > Applications of Anthropology > Ergonomics > Anthropometry
2026Paper IApplied & Forensic AnthropologyModel answer available

1(b) Canalization and catch-up growth.

10 Marks150 words
Syllabus: Paper I > Human Growth and Development > Growth patterns > Canalization and catch-up growth
2026Paper IHuman Genetics & Human BiologyModel answer available

5(c) Feminist movement and family.

10 Marks150 words
Syllabus: Paper I > Family > Contemporary trends > Feminist movement and family
2026Paper IMarriage & FamilyModel answer available

1(a) Health as a cultural construct.

10 Marks150 words
Syllabus: Paper I > Applications of Anthropology > Medical Anthropology > Culture and health
2026Paper IApplied & Forensic AnthropologyModel answer available

1(c) Myth as oral literature.

10 Marks150 words
Syllabus: Paper I > Religion, Myth and Ritual > Myth > Myth as oral literature
2026Paper IAnthropology of ReligionModel answer available

5(e) Thermoluminescence dating method.

10 Marks150 words
Syllabus: Paper I > Archaeological Anthropology > Dating methods > Thermoluminescence
2026Paper IPrehistoric ArchaeologyModel answer available