1. Introduction

The Biological Inheritance Doctrine is a useful concept for analysing how law regulates the transmission of biological characteristics, genetic information, hereditary diseases, reproductive material, and genetic identity from one generation to another. It also provides a framework for examining the legal rights of individuals whose biological characteristics influence their access to healthcare, employment, insurance, family relationships, inheritance, and public services.

Important legal clarification: Biological Inheritance Doctrine is not a single, universally recognised legal doctrine established under that exact name. Rather, it is an analytical framework derived from several established areas of law, including constitutional law, genetic privacy, family law, medical negligence, reproductive rights, anti-discrimination law, and biotechnology regulation.

The doctrine raises a fundamental question: To what extent may the law recognise biological inheritance without allowing inherited characteristics to determine a person's rights, identity, or social opportunities?

In India, this question is particularly relevant to the constitutional guarantees of equality, dignity, privacy, personal liberty, and reproductive autonomy.

2. Meaning and scope of biological inheritance

Biological inheritance refers to the transmission of genetic material and certain biological characteristics from parents to their offspring. Modern biotechnology enables the identification, analysis, and sometimes alteration of genetic information, creating legal questions that extend beyond traditional inheritance law.

The doctrine can be examined through six principal dimensions:

Genetic inheritance: The transmission of genes, inherited disorders, and hereditary predispositions.

Genetic identity: The legal and ethical significance of DNA information in determining biological relationships and personal identity.

Reproductive autonomy: The rights of individuals to make informed decisions concerning reproduction and genetic testing.

Genetic privacy: Protection against unauthorised collection, disclosure, or use of inherited biological information.

Anti-discrimination: Prevention of unfair treatment based on genetic characteristics or hereditary conditions.

Intergenerational responsibility: Legal and ethical questions arising when genetic interventions or reproductive decisions may affect future generations.

These dimensions overlap, but they must not be confused with ordinary succession law. Inheritance of property concerns the transfer of legally recognised assets after death; biological inheritance concerns genetic transmission and its legal consequences.

3. Constitutional foundations in India

The Biological Inheritance Doctrine can be understood through the following constitutional principles.

A. Article 14: Equality before the law

Article 14 requires equality before the law and equal protection of the laws. It is relevant when people are treated differently because of hereditary diseases, genetic predispositions, or biological characteristics.

For example, excluding a person from a public opportunity solely because genetic testing indicates a future risk of disease may raise questions about arbitrariness, rational justification, and equal treatment.

B. Article 21: Life, dignity, privacy, and personal liberty

Article 21 protects life and personal liberty. Its interpretation encompasses dignity, bodily autonomy, and privacy. Genetic information can reveal intimate facts about a person and their biological relatives, making it particularly sensitive.

The constitutional analysis becomes important where authorities, employers, healthcare institutions, or private organisations collect or use genetic information without adequate justification.

C. Article 15: Protection against discrimination

Article 15 prohibits specified forms of discrimination by the State, including discrimination on grounds of religion, race, caste, sex, or place of birth. Genetic characteristics are not expressly listed as a separate ground.

Nevertheless, a genetic discrimination dispute may engage constitutional equality principles and, depending on the facts, other protections against sex discrimination, disability discrimination, or arbitrary State action.

D. Article 19: Freedom and professional opportunities

Article 19(1)(g) protects the right of citizens to practise a profession or carry on an occupation, subject to constitutionally permissible restrictions. Genetic screening used to exclude candidates from employment or professional opportunities may raise questions about fairness, proportionality, and the legitimacy of the restriction.

E. Reproductive autonomy and family life

Decisions about whether to undergo genetic testing, receive reproductive counselling, or pursue reproductive treatment involve questions of personal autonomy and privacy. The law must balance individual freedom with informed consent, medical safety, and the interests of children who may be affected by reproductive decisions.

These constitutional protections provide the foundation for analysing biological inheritance, but they do not create an unrestricted right to conceal biological information in every legal proceeding.

4. Leading case laws

The following decisions are particularly relevant to biological inheritance, genetic evidence, bodily autonomy, and the protection of genetic information.

Case 1: K.S. Puttaswamy v. Union of India (2017)

Supreme Court of India · (2017) 10 SCC 1

Facts and legal issue: The Supreme Court considered whether the Constitution protects a fundamental right to privacy.

Judgment: The nine-judge Bench unanimously recognised privacy as a constitutionally protected fundamental right under Article 21 and the broader guarantees of Part III of the Constitution.

Relevance to biological inheritance: Genetic information can reveal hereditary diseases, biological relationships, ancestry, and other intimate details. The privacy principle therefore supplies a constitutional basis for challenging unjustified genetic-data collection or disclosure.

Where State action interferes with privacy, the constitutional assessment includes legality, legitimate purpose, proportionality, and safeguards against abuse.

Legal principle: Biological information should not be collected or used by public authorities without a legally defensible basis and appropriate safeguards.

Case 2: Bhabani Prasad Jena v. Convenor Secretary, Orissa State Commission for Women (2010)

Supreme Court of India · (2010) 8 SCC 633

Facts: The dispute involved a request for DNA testing in proceedings concerning disputed paternity.

Judgment: The Supreme Court emphasised that DNA testing should not be ordered routinely. Courts must exercise judicial discretion carefully, considering the circumstances and the competing interests involved.

Relevance to biological inheritance: Biological truth and genetic evidence can be important, but they do not automatically override privacy, bodily integrity, family stability, or the welfare of a child.

A court should consider whether the test is genuinely necessary to resolve the dispute rather than permitting a speculative inquiry into private family relationships.

Legal principle: Genetic testing must be justified by the needs of the case and balanced against the rights of the individuals concerned.

Case 3: Nandlal Wasudeo Badwaik v. Lata Nandlal Badwaik (2014)

Supreme Court of India · (2014) 2 SCC 576

Facts: A husband disputed paternity, and DNA testing indicated that he was not the biological father of the child. The dispute involved the evidentiary effect of the statutory presumption of legitimacy under Section 112 of the Indian Evidence Act, 1872.

Judgment: In the circumstances before it, the Supreme Court gave effect to the DNA evidence and held that the statutory presumption could not prevail over the established scientific result.

Relevance to biological inheritance: This case demonstrates that genetic evidence can have substantial legal consequences for parentage and maintenance disputes.

However, the decision should not be interpreted as authorising compulsory DNA testing in every paternity case. The question whether a test should be ordered is distinct from the question of how a test result already properly obtained should be treated.

Legal principle: Reliable DNA evidence may rebut a legal presumption in appropriate circumstances, subject to the governing law and the facts of the case.

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Case 4: Sharda v. Dharmpal (2003)

Supreme Court of India · (2003) 4 SCC 493

Facts and legal issue: The case concerned whether a matrimonial court could direct a medical examination of a spouse in the course of proceedings.

Judgment: The Supreme Court held that a court has power, in appropriate circumstances, to order a medical examination. Refusal to comply may, depending on the facts, permit an adverse inference. The Court did not establish an unlimited power to compel examinations without judicial justification.

Relevance to biological inheritance: Genetic testing can involve bodily intrusion and disclosure of private information. The case illustrates the distinction between a person's general interest in bodily privacy and a court's carefully exercised authority to obtain relevant evidence.

Legal principle: A medical or genetic examination must be assessed in the context of the proceeding, its necessity, and the applicable legal safeguards.

Case 5: Dipanwita Roy v. Ronobroto Roy (2015)

Supreme Court of India · (2015) 1 SCC 365

Facts: In matrimonial litigation involving allegations of adultery, the husband sought DNA testing to establish the paternity of a child.

Judgment: The Supreme Court considered the request for DNA testing in the particular circumstances of the matrimonial dispute and addressed the consequences of a party's refusal to comply with the direction.

Relevance to biological inheritance: The case illustrates how genetic evidence may intersect with marital privacy, allegations concerning reproductive relationships, and the evidentiary interests of litigants.

It does not mean that refusal to undergo a DNA test automatically proves disputed paternity or adultery. Any adverse inference must be evaluated according to the circumstances and applicable law.

Legal principle: The evidentiary value of genetic testing must be assessed alongside privacy, fairness, and the interests of affected family members.

Case 6: Aparna Ajinkya Firodia v. Ajinkya Arun Firodia (2023)

Supreme Court of India · 2023 INSC 146 · (2024) 7 SCC 773

Facts: During matrimonial proceedings, a husband sought DNA testing of a minor child born during the marriage, seeking to support allegations of adultery.

Judgment: The Supreme Court set aside the direction for DNA testing. It emphasised the child's privacy and welfare, the presumption of legitimacy, and the need to establish a sufficient legal basis before ordering such a test. A child's genetic identity should not be subjected to unnecessary judicial scrutiny merely to assist one parent's allegations against the other.

Relevance to biological inheritance: This is a particularly important case because it demonstrates that biological truth is not the only relevant legal consideration. A child's dignity, privacy, and emotional welfare may outweigh a parent's desire to establish genetic parentage through testing.

Legal principle: Courts must examine the proposed DNA test from the perspective of the child and the actual necessity of the evidence, rather than automatically granting a parent's request.

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Case 7: Suchita Srivastava v. Chandigarh Administration (2009)

Supreme Court of India · (2009) 9 SCC 1

Facts: The case concerned the reproductive rights of a woman with an intellectual disability who became pregnant while residing in a government institution. The authorities sought termination of her pregnancy.

Judgment: The Supreme Court recognised reproductive choice as an aspect of personal liberty under Article 21. It stressed the importance of the woman's consent and reproductive autonomy.

Relevance to biological inheritance: Decisions about reproduction determine whether biological relationships and genetic characteristics will be transmitted to future generations. The case establishes that the State cannot disregard a person's reproductive autonomy simply because it believes a different reproductive outcome would be preferable.

The decision does not eliminate applicable medical or statutory safeguards, but it rejects the idea that the State may automatically substitute its own preference for an individual's reproductive choice.

Legal principle: Reproductive autonomy is a significant component of dignity and personal liberty.

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Case 8: Association for Molecular Pathology v. Myriad Genetics, Inc. (2013)

Supreme Court of the United States · 569 U.S. 576 (2013)

Facts: Myriad Genetics had identified the location and sequence of the BRCA1 and BRCA2 genes, variants of which can increase the risk of certain cancers. The company claimed patent protection over isolated DNA containing these genes.

Judgment: The US Supreme Court held that a naturally occurring DNA segment is not patent-eligible merely because it has been isolated. However, synthetically created complementary DNA (cDNA) may be patent-eligible where it is not naturally occurring, subject to the Court's reasoning and applicable patent law.

Relevance to biological inheritance: Human genes carry information inherited across generations. The case addresses whether discovering and isolating that naturally occurring genetic information is enough to establish an exclusive intellectual-property right.

It distinguishes discovering biological material from creating something sufficiently different to qualify for patent protection.

Legal principle: Natural genetic information is not automatically a patentable invention merely because a researcher has identified or isolated it. This is a US patent-law decision, not a binding Indian judgment.

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Case 9: Chaturbhuj Pradhan v. Amar Pradhan (2026)

Supreme Court of India · 2026 INSC 600 · decided 29 May 2026

Legal significance: This decision addresses DNA testing in a civil dispute involving paternity and biological lineage. The Court considered the circumstances in which testing may be justified when parentage is directly in issue and ordinary evidence is insufficient.

Relevance to biological inheritance: Establishing biological parentage may affect inheritance claims, family relationships, and personal identity. At the same time, genetic testing intrudes upon privacy and can have serious consequences for the individuals concerned.

Legal principle: DNA testing is not a routine investigative measure. Courts must examine its necessity and balance the legitimate interest in determining biological lineage against privacy and the potential consequences for the parties.

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5. International approaches to genetic inheritance

The comparative position helps explain how legal systems address genetic information beyond parentage disputes.

A. United States: Genetic Information Nondiscrimination Act, 2008

The US Genetic Information Nondiscrimination Act (GINA) prohibits specified forms of discrimination based on genetic information in employment and health insurance.

Under Title II, covered employers generally cannot use genetic information to make employment decisions, and the law restricts the acquisition and disclosure of such information, subject to statutory exceptions.

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For example, an employer should not reject an applicant merely because a genetic test indicates an increased future risk of developing a hereditary disease.

GINA is an important legislative model because it addresses genetic discrimination directly rather than relying solely on general equality principles. However, its protections are not universal: it does not cover every type of insurance or every situation involving genetic information.

B. International human-rights principles

International instruments also provide a framework for protecting genetic dignity and autonomy.

Universal Declaration on the Human Genome and Human Rights (UNESCO, 1997): Emphasises human dignity and the need to prevent discrimination based on genetic characteristics.

International Covenant on Civil and Political Rights (ICCPR), Article 17: Protects against arbitrary or unlawful interference with privacy.

Convention on the Rights of Persons with Disabilities (CRPD): Supports equality, dignity, and protection against disability-based discrimination.

These instruments help inform legal analysis, although their enforceability and domestic application depend on the relevant legal system.

6. Application under Indian law

India does not have one comprehensive statute devoted exclusively to genetic discrimination and hereditary information. Instead, the legal framework is distributed across constitutional principles, evidence law, data protection, healthcare regulation, disability law, and family law.

Two qualifications are important.

First, the Bharatiya Sakshya Adhiniyam replaced the Indian Evidence Act for proceedings governed by the new legislation, subject to applicable savings and transitional provisions. Older judgments under Section 112 of the Evidence Act remain important for understanding the legal principles, but the applicable statutory provision must be identified for the particular proceeding.

Second, the Digital Personal Data Protection Act should not be treated as a complete genetic-privacy code. Its application depends on the relevant data processing, statutory provisions, commencement arrangements, and applicable rules. Genetic data may also raise questions beyond digital-data regulation, including bodily integrity, medical confidentiality, and constitutional privacy.

7. Major legal issues arising under the doctrine

7.1 Genetic privacy and informed consent

Genetic testing can reveal information about both the tested person and biological relatives. A test conducted for one purpose may reveal unexpected family relationships or hereditary disease risks.

A sound legal framework should address:

Whether consent was informed and freely given.

Whether the collection and use of genetic material have a lawful basis.

Who may access test results.

Whether secondary uses of the information are permitted.

How samples and records should be secured or retained.

The balance may differ between voluntary clinical testing, forensic testing, research, and testing ordered by a court.

7.2 Genetic discrimination

A person may be predisposed to a condition without currently suffering from it. Treating a probabilistic risk as proof of present incapacity can create unfairness.

For example, a company might deny employment to a medically fit person because a hereditary test suggests an increased likelihood of illness decades later.

Under the Indian Constitution, the legality of such treatment would depend on the facts, the decision-maker, the applicable statutory protections, and the relevant equality and privacy principles. It would be inaccurate to claim that India already has a general statute equivalent to GINA covering every such situation.

7.3 Parentage and the rights of children

DNA testing may help resolve disputes concerning biological parentage, but genetic parentage and legal parentage are not always identical.

Legal parentage may also arise from adoption, statutory presumptions, assisted reproduction, and other legally recognised relationships.

The law must therefore distinguish between:

Biological parentage.

Legal parentage.

Social and caregiving relationships.

A child's interests in identity, privacy, stability, and welfare.

The cases of Bhabani Prasad Jena, Nandlal Wasudeo Badwaik, and Aparna Ajinkya Firodia demonstrate that courts must consider these interests together rather than apply a universal rule that DNA evidence always prevails.

7.4 Genetic testing and reproductive autonomy

Preconception testing, prenatal screening, and embryo testing may help identify inherited conditions. However, the use of genetic information can raise difficult questions about consent, disability discrimination, reproductive freedom, and the social pressure to avoid certain genetic characteristics.

A legally defensible approach should preserve informed reproductive choice while ensuring that medical services comply with applicable legislation and professional standards.

7.5 Genetic patents and access to treatment

Patent law must balance incentives for biotechnology innovation against access to testing, research, and healthcare.

The Myriad Genetics decision illustrates one limit on patent claims: discovering naturally occurring DNA does not itself make the DNA patentable in the United States.

For India, the question must be assessed under the Patents Act, 1970, including its statutory exclusions. The US decision is persuasive for comparative analysis but does not determine Indian patent eligibility.

8. Critical analysis

The central tension in the Biological Inheritance Doctrine is the difference between biological determinism and legal personhood.

Biological determinism treats inherited characteristics as if they necessarily determine an individual's health, abilities, behaviour, or future. Modern genetics does not support such a universal assumption. Many characteristics reflect interactions among genes, environment, lifestyle, and other factors.

Law should consequently avoid treating genetic probability as conclusive proof of an individual's present capacities or future conduct.

Three principles are particularly important:

Individual autonomy: People should retain meaningful control over reproductive choices and the disclosure of their genetic information, subject to lawful limitations.

Equal legal status: Hereditary conditions should not automatically diminish a person's dignity, rights, or eligibility for opportunities.

Proportionate use of scientific evidence: Courts and public authorities should use genetic evidence where it is relevant and reliable, while accounting for privacy, consent, legal presumptions, and the welfare of affected persons.

There is also an intergenerational dimension. Genetic interventions that may affect future descendants raise questions about consent, scientific uncertainty, long-term safety, and regulatory oversight. Those questions require careful statutory and ethical analysis rather than an assumption that scientific capability alone establishes legal permission.

9. Conclusion

The Biological Inheritance Doctrine provides a framework for examining the legal consequences of inherited genetic characteristics and the transmission of biological information between generations. It is not a single codified doctrine, but its underlying principles can be developed from established constitutional, family, evidence, privacy, patent, and biotechnology law.

The Indian Supreme Court's decisions establish several important propositions: privacy is constitutionally protected; reproductive autonomy is part of personal liberty; DNA testing must be judicially justified; and genetic evidence may be significant without automatically overriding every competing legal interest.

For legal research, the most useful cases are K.S. Puttaswamy, Bhabani Prasad Jena, Nandlal Wasudeo Badwaik, Sharda, Dipanwita Roy, Suchita Srivastava, and Aparna Ajinkya Firodia. The comparative decision in Myriad Genetics adds an important perspective on the limits of intellectual-property claims over naturally occurring genetic material.

Ultimately, the doctrine's central objective is to ensure that biological inheritance informs legitimate legal decisions without allowing inherited characteristics to become a basis for arbitrary discrimination, unjustified intrusion, or the denial of human dignity.