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Biology questions with answers

2,759 multiple-choice questions. Open any question for its answer and explanation.

Questions asked in State PSC and UPSC prelims, by topic. Each topic also has notes to read.

Read the notes: Viral Diseases →

  1. Which of the following organs of the human body is affected by Hepatitis 'B' ?Asked in MPSC CS Prelims 2012
  2. AIDS is caused by a virus whose genetic material isAsked in UPSC NDA 1 2018
  3. It is difficult to kill viruses because theyAsked in UPSC NDA 2 2016
  4. Which one of the following statements regarding viruses is not true ?Asked in UPSC NDA 2 2019
  5. Which one of the following viruses used to be responsible for highly infectious disease Smallpox ?Asked in UPSC NDA 2 2021
  6. Hepatitis is a :Asked in OPSC CS Prelims 2019
  7. Nucleic acid present in corona virus is :Asked in OPSC CS Prelims 2020
  8. Which of the following statements is/are correct? 1. Viruses lack enzymes necessary for the generation of energy. 2. Viruses can be cultured in any synthetic medium. 3. Viruses are transmitted from one organism to another by biological vectors only. Select the correct answer using the codes given below.Asked in UPSC IAS 2013
  9. Which of the following statements is/are correct? Viruses can infect bacteria fungi plants Select the correct answer using the code given below.Asked in UPSC IAS 2016
  10. Consider the following statements : Adenoviruses have single-stranded DNA genomes whereas retroviruses have double-stranded DNA genomes. Common cold is sometime caused by an adenovirus whereas AIDS is caused by a retrovirus. Which of the statements given above is/are correct?Asked in UPSC IAS 2021
  11. What is a bacteriophage?Asked in WBPSC CS Prelims 2017
  12. In AIDS virus, there isAsked in UPPSC Upper Mains 2008
  13. The liver disease Hepatitis-B is caused byAsked in UPPSC Upper Mains 2011
  14. Measles(KHASARA) disease is caused by:Asked in RPSC RAS Prelims 1998
  15. Dengue fever is caused by a:Asked in APPSC Draughtman 2008
  16. Corona Virus is aAsked in ACF And Forest Range Officer Gr I Comp. Exam 2018
  17. What is the study of viruses called?Asked in AESE (RECRUITMENT TEST) 2025
  18. Outer covering of virus, which is made up of protein, is known asAsked in Additional Private Secretary Exam 2017
  19. The virus of COVID-19 is studied under which virus family?Asked in acf 2019
  20. Which of the following viruses was assessed to be responsible for highly infectious disease of small pox?Asked in Civil Judge 2022
  21. Genetic material of retrovirus is:Asked in lower devision clerk 2025
  22. Bacteriophage is a type ofAsked in GKAMT TDO 05 2024 2110 2024
  23. Small pox and Rabies areAsked in Government Polytechnic Lecturer Group B Exam 2015 16 2015
  24. From where did Corona virus get its name?Asked in Section Officer(LDCE) 2021 22 2021
  25. An antibiotic is not useful against a virus whereas a vaccine is. Which one of the following is the most appropriate reason for this ?Asked in UPSC CDS 1 2021