Which of the following best describes the scientific understanding of the relationship between caste and human biology as discussed in recent studies?

Caste-based discrimination creates environments that influence gene regulation and biological development.

Genetic diversity in India is solely the result of recent migration patterns.

Caste is a biological reality determined by inherited genetic traits.

The human nervous system is fixed at birth, validating the caste-based division of labour.

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8 September 2026

Caste and science debate

This topic provides a strong interdisciplinary framework linking scientific concepts like epigenetics and neuroplasticity to the sociological critique of caste, which is highly useful as analytical context for GS1 and GS4 essay or mains answers.

Notes

The caste system assigns social roles based on birth, contrasting with constitutional principles where rights are attached to individuals as citizens.
Scientific research indicates that caste-based discrimination affects human development through social determinants of health and social epigenetics.
Social epigenetics demonstrates that environmental circumstances can induce biological changes by affecting gene regulation.
Genetic studies (2009) show that present-day Indian populations are derived from two ancient groups that mixed before the onset of endogamy.
Endogamy has led to strong founder effects and substantial genetic differences between communities, rather than biological predestination for specific social roles.
The human nervous system exhibits plasticity, rewiring itself based on experience, environment, and individual choice, which contradicts the notion of fixed, inherited abilities.
Caste-based discrimination restricts the accumulation and transmission of knowledge, hindering the species-wide capacity for cultural and intellectual advancement.

Questions

How does the scientific understanding of human development and genetic diversity challenge the sociological justification of the caste system in India? 150 words

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The constitutional vision of equality stands in stark contrast to the hierarchical division of labour inherent in the caste system. Discuss how modern scientific insights into neuroplasticity and social epigenetics support the constitutional mandate of individual dignity and equality. 250 words

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Prelims

Which of the following best describes the scientific understanding of the relationship between caste and human biology as discussed in recent studies?

Syllabus

Topics

Sources

The incongruity of caste and science

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