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UPSC MainsAnthropology Optional Paper I 2015 10 Marks Model Answer Available

DNA Technology in Medicine — 2015 Paper I

Question · 2015 · Paper I · 10 Marks

DNA technology in Medicine.

Model Answer

VAID ICS

Approach

  • Demand of Question: Explain how DNA-based technologies are applied to diagnosis, prevention and treatment of human diseases.
  • Structuring the Response: Briefly identify major techniques and connect each with medical applications, while noting ethical concerns.
  • Key Dimensions to Cover: PCR, sequencing, genetic diagnosis, prenatal testing, pharmacogenomics, recombinant DNA, gene therapy and personalized medicine.

Model Answer

Introduction: DNA technology comprises techniques for analysing, amplifying, sequencing and modifying genetic material. It has transformed medicine by enabling diagnosis and treatment at the molecular level.

Major applications

  1. Genetic diagnosis: DNA analysis detects mutations responsible for disorders such as:
  • thalassaemia;
  • sickle-cell disease;
  • cystic fibrosis.
  1. PCR-based diagnosis: Polymerase Chain Reaction (PCR) amplifies specific DNA sequences, permitting detection of:
  • pathogens;
  • inherited mutations;
  • very small biological samples.
  1. Prenatal diagnosis: DNA obtained through procedures such as amniocentesis or chorionic villus sampling can detect selected inherited abnormalities.
  2. DNA sequencing: Whole-genome and targeted sequencing help identify disease-associated variants.
  3. Recombinant DNA technology: It enables production of therapeutic proteins such as recombinant human insulin.
  4. Pharmacogenomics: Genetic variation can help predict:

Drug response → Appropriate drug/dose → Personalized treatment

  1. Gene therapy: Functional genetic material may be introduced or edited to treat selected genetic disorders.

DNA technology also supports cancer genomics and transplantation-related testing.

Ethical concerns

Issues include:

  • genetic privacy;
  • discrimination;
  • informed consent;
  • unequal access.

Conclusion: DNA technology has moved medicine toward early diagnosis, molecular therapy and personalized healthcare, while simultaneously creating important ethical responsibilities concerning the use of genetic information.

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UPSC Anthropology Optional 2015 — Paper I

28 questions
Syllabus: Paper I > 1.3 Main branches of Anthropology > Archaeological Anthropology
2015Paper IFoundations of AnthropologyModel answer available
Syllabus: Paper I > 12. Applications of Anthropology > DNA technology in diseases and medicine
2015Paper IApplied & Forensic AnthropologyModel answer available

5(b) Down's Syndrome.

10 Marks150 words
Syllabus: Paper I > 9.4(c) Autosomal aberrations > Down syndrome
2015Paper IHuman Genetics & Human BiologyModel answer available
Syllabus: Paper I > 6. Anthropological Theories > Historical Particularism (Boas)
2015Paper IAnthropological TheoriesModel answer available

1(d) Horticulture.

10 Marks150 words
Syllabus: Paper I > 3. Economic Organization > Modes of subsistence > Horticulture
2015Paper IEconomic & Political AnthropologyModel answer available

1(c) Incest Taboos.

10 Marks150 words
Syllabus: Paper I > 2.3 Marriage > Rules of marriage > Incest taboo
2015Paper IMarriage & FamilyModel answer available
Syllabus: Paper I > 10. Human growth and development > Methodologies for growth studies > Longitudinal method
2015Paper IHuman Genetics & Human BiologyModel answer available
Syllabus: Paper I > 11.1 Relevance of menarche, menopause and other bio-events to fertility
2015Paper IHuman Genetics & Human BiologyModel answer available
Syllabus: Paper I > 1.8(b) Cultural Evolution: broad outlines of prehistoric cultures > Palaeolithic
2015Paper IPrehistoric ArchaeologyModel answer available

1(b) Society and Culture.

10 Marks150 words
Syllabus: Paper I > 2.2 The Nature of Society > Society and culture
2015Paper ICulture & SocietyModel answer available