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Biological Classification

  • Cyanobacteria and Nitrogen Fixation
  • Five Kingdom Classification
  • Criteria for Classification of Fungi
  • Common Names of Fungal Genera
  • Characteristic Features of Phaeophyceae (Brown Algae)
  • Kingdom Monera
  • Kingdom Fungi – Reproduction
  • Viruses, Viroids and Lichens
  • Viruses, Viroids, Prions and Lichens
  • Kingdom Fungi
  • Kingdom Fungi – Modes of Nutrition and Symbiotic Associations
  • Five Kingdom classification criteria (Whittaker)
  • Modes of nutrition in Protista/Monera
  • Cyanobacteria (blue-green algae)
  • Prokaryotic cell inclusions
  • Pigments in algae
  • Mycoplasma (PPLO)
  • Viruses, viroids and prions
  • Lichens
  • Kingdom Monera - archaebacteria
  • Bacteria - shapes
  • Sexual reproduction in fungi
All Exams › NEET Previous Year Questions › Biology › Biological Classification › Viruses, viroids and prions

Viruses, viroids and prions

3 Questions
3 Papers Covered
11.54% Weightage
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2026 Re-NEET 1 question

  1. Mad cow disease is caused by _______.

2022 Phase 2 1 question

  1. Mad cow disease in cattle and Cr Jacob disease in humans are due to infection by ________.

2019 Odisha 1 question

  1. Mad cow disease in cattle is caused by an organism which has:
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