Revision summary
Indian tribes vary genetically by region and language family. They are not Risley’s or Guha’s single tribal type. Local castes may be closer than distant tribes. Siwalik apes are not tribal ancestors. Health policy must follow local variation.
Model answer
Copper italics in this answer — like this — are the key facts. Each one is unpacked in the Facts & figures rail.
Introduction
Indian tribes are genetically diverse. They are not one blood, and they do not match Risley’s tribal race.
Body
What variability shows
- Andaman, Himalayan, Central Indian, and southern forager groups differ in markers, language, and morphology.
- Austroasiatic, Dravidian, Tibeto-Burman, and Indo-Aryan speaking tribes do not share one gene package.
- Guha’s types over-grouped that spread. Field serology and later genetics split it again.
What it does not show
- Variability is not a ranking of civilised and primitive stocks.
- Caste neighbours often share more with local tribes than distant tribes share with each other.
- Siwalik fossils are deep prehistory, not a tribal pedigree.
Policy use
- Health and sickle-cell programmes need local data. A single tribal biology is a bad plan.
Flow diagram
flowchart TD V[Tribal genetic spread] --> R[Regional clusters] RIS[Risley one race] --> X[Fails] V --> H[Local health data]
Conclusion
Bio-genetic variability of Indian tribes is high and regional. It refutes one tribal race and warns against one-size medical or origin myths.
Quick related
Students also ask
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Discuss the sociocultural, economic and psychological constraints responsible for low literacy in tribal areas
Next question on this syllabus topic (2015 · Q8(c)). View answer →
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Are tribes genetically ‘pure’?
No. Isolation is relative. Gene flow with neighbours is common.
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Does ST status rest on genes?
It is a constitutional list, not a DNA test.
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