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Edexcel A-Level Biology Notes

2.8.5 Social and Ethical Issues in Genetic Screening

Edexcel Syllabus focus:

'Identify and discuss social and ethical issues related to genetic screening from a range of ethical viewpoints.'

Genetic screening can provide useful biological information, but it also raises difficult questions about privacy, choice, fairness, and how society values disability, risk, and future health.

Understanding the issue

Genetic screening can identify whether a person carries, has, or may develop a genetic condition. This information may help with planning, treatment, or reproductive decisions, but it can also create uncertainty and moral disagreement.

Genetic screening: Testing individuals or groups to identify gene variants linked to inherited disorders or increased disease risk.

A social issue is an effect on people, families, or society, such as stigma or unequal access. An ethical issue concerns what is morally right or wrong, such as whether screening should be offered, who should decide, and how results should be used.

Social issues in genetic screening

Privacy, confidentiality, and discrimination

Genetic information is highly personal. If screening results are not kept confidential, they may affect a person’s relationships, job prospects, or insurance access. This creates concern about genetic discrimination, where individuals are treated unfairly because of their DNA rather than their current health.

Possible social consequences include:

  • employers making assumptions about future illness

  • insurers viewing a person as higher risk

  • family members learning information they did not want to know

  • reduced trust in healthcare systems if data protection is weak

Even when laws exist, people may still fear misuse of their results. That fear alone can discourage participation in screening programs.

Psychological effects and family impact

Screening may cause strong emotional responses. A positive result can lead to anxiety, guilt, or fear about the future. A negative result can also be difficult if other family members are affected and the individual feels survivor guilt.

Because genes are shared, one person’s result may reveal information about relatives. This can create family tension, especially if relatives disagree about whether testing should happen or whether results should be shared.

Common family effects include:

  • blame between parents over inherited conditions

  • disagreement over reproductive choices

  • pressure to inform siblings or children

  • worry about future generations

These effects show that genetic screening is not only an individual issue; it can affect entire families.

Access, inequality, and social pressure

A major social concern is fair access. If screening is expensive, available only in some regions, or limited by education level, then some groups benefit more than others. This could widen existing health inequalities.

There can also be subtle social pressure to be screened. If screening becomes routine, people may feel judged for refusing it. Parents may feel pressured to make particular reproductive choices because society, relatives, or healthcare professionals expect them to avoid the birth of a child with a genetic disorder.

This may reduce genuine freedom of choice, even if screening is officially voluntary.

Ethical issues in genetic screening

Consent and the right to choose

An important ethical principle is autonomy, meaning that individuals should make informed decisions about their own healthcare. For genetic screening, this means people should understand:

  • what the test can and cannot show

  • the possible outcomes

  • the limitations of the result

  • the consequences for themselves and relatives

Ethically, consent should be informed and voluntary. A related issue is the right not to know. Some people may prefer not to learn about a future genetic risk, especially if no effective treatment exists. Respecting autonomy means accepting both the choice to test and the choice to refuse.

Reproductive decision-making

Genetic screening can influence decisions about having children, continuing a pregnancy, or selecting embryos. Some people argue that this can reduce suffering by avoiding serious genetic disease. Others believe it risks turning reproduction into a process of selection based on preferred traits.

A key ethical concern is whether screening implies that some lives are less valuable than others. Disability groups may argue that widespread screening for certain conditions can increase negative attitudes toward people already living with those conditions.

This issue is especially sensitive because screening may be presented as medically useful while also carrying social messages about what kinds of lives are considered acceptable.

Balancing benefit and harm

Another ethical question is whether the benefits of screening outweigh the harms. Benefits may include earlier support, better planning, and informed choices. Harms may include distress, false reassurance, uncertain results, or unnecessary worry.

Not all results are clear-cut. Some gene variants increase risk without guaranteeing disease. This uncertainty raises ethical problems because people may make major life decisions based on probabilities rather than certainty.

Healthcare professionals must therefore consider beneficence (doing good) and non-maleficence (avoiding harm) when offering and explaining screening.

Different ethical viewpoints

Utilitarian viewpoint

A utilitarian approach judges actions by their outcomes. From this viewpoint, genetic screening may be supported if it reduces suffering, improves health, and helps families make informed decisions. However, utilitarian thinking may be criticized if it places overall benefit above individual rights or the interests of minority groups.

Rights-based viewpoint

A rights-based or deontological viewpoint emphasizes duties and individual rights. From this perspective, privacy, informed consent, and freedom from discrimination are central. Even if screening benefits society overall, it may still be wrong if people are pressured, misled, or treated unfairly because of their results.

Religious, cultural, and disability-rights viewpoints

Some religious viewpoints emphasize the sanctity of life and may object to screening if it leads to embryo selection or pregnancy termination. Other religious or cultural perspectives may still accept screening if the aim is preparation, treatment, or support rather than selection.

A disability-rights viewpoint often focuses on equality and respect. It may challenge the idea that screening is always positive, arguing that society should value disabled people and improve support rather than assume prevention is the best response.

These different viewpoints explain why genetic screening remains socially and ethically debated, even when the science behind the test is strong.

Practice Questions

State two social or ethical issues linked to genetic screening. (2 marks)

  • 1 mark for any valid social or ethical issue, up to 2 marks.

  • Acceptable answers include:

    • privacy or confidentiality of genetic information

    • discrimination by employers or insurers

    • anxiety or psychological harm

    • family conflict over sharing results

    • unequal access to screening

    • informed consent

    • pressure over reproductive decisions

    • concerns about valuing some lives less than others

Discuss social and ethical issues related to genetic screening from different ethical viewpoints. (6 marks)

Award up to 6 marks for a balanced discussion including social issues, ethical issues, and more than one ethical viewpoint.

Indicative content:

  • privacy and confidentiality of genetic results

  • risk of stigma or discrimination

  • psychological effects on individuals and families

  • unequal access to screening

  • importance of informed consent and autonomy

  • right not to know genetic information

  • ethical concerns about reproductive decision-making

  • concern that screening may devalue people with disabilities

  • utilitarian view: supports screening if it reduces suffering or benefits many people

  • rights-based or deontological view: emphasizes consent, privacy, and fair treatment

  • religious or cultural view: may support preparation but oppose selection or termination

  • disability-rights view: stresses equality and social support rather than prevention alone

Level guidance:

  • 1-2 marks: limited statements, little or no viewpoint comparison

  • 3-4 marks: some explanation of issues and at least one ethical viewpoint

  • 5-6 marks: clear discussion with multiple issues and a comparison of different ethical viewpoints

FAQ

These tests may be bought without a doctor or genetic counselor, so people can receive difficult information without proper explanation.

Problems include:

  • misunderstanding risk

  • false reassurance

  • unnecessary anxiety

  • weak data privacy policies

Some companies may also store or share genetic data in ways customers do not fully understand.

Knowing about a possible future disease risk can affect mental health, relationships, and life planning.

Some people prefer uncertainty over:

  • long-term anxiety

  • fear of discrimination

  • feeling defined by a risk rather than current health

For some, choosing not to know is an important part of personal autonomy.

An incidental finding is an unexpected result discovered while looking for something else.

This is ethically difficult because:

  • the result may not be related to the original reason for testing

  • its meaning may be uncertain

  • the person may not have wanted that information

Healthcare professionals must decide what should be reported and how much choice the patient should have beforehand.

Genetic counseling supports informed, non-coerced decisions.

A counselor can help people:

  • understand what a result means

  • recognize uncertainty and limitations

  • think about family consequences

  • consider emotional and ethical impacts

Good counseling does not tell a person what choice to make. Its role is to support understanding and voluntary decision-making.

Yes. If screening is widely promoted as a way to reduce the number of people born with certain conditions, some may interpret this as a message that those lives are less valuable.

This can affect:

  • public attitudes

  • funding priorities

  • inclusion in education and work

  • how families with disabled members feel treated

That is why many debates include disability advocacy groups as well as scientists and doctors.

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