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 viral disease is caused by *Varicella- zoster* virus?Asked in ASCO 2014
2. 'Bird Flue' is caused by influenza virus typeAsked in KPSC KAS Prelims 2014
3. Which of the following Viruses causes the Corona disease?Asked in GPSC Prelims CSP 2 2021
4. Which of the following disease is related to Corona virus ?Asked in MPPSC CS Prelims 2020
5. Which of the following facts about Covid-19 virus is / are wrong? (a) People who have been infected by the virus but do not have symptoms do not spread virus. (b) Reinfection is not possible. (c) Anosmia (loss of smell) is a symptom. (d) Babies do not get infected by Corona virus.Asked in TNPSC CS Prelims 2021
6. The recent global pause during COVID-19 pandemic was caused due to:Asked in UPPCS Prelims 2024
7. H1N1 virus is sometimes mentioned in the news with reference to which one of the following diseases?Asked in UPSC IAS 2015
8. According to WHO, the official name of the virus responsible for Covid-19 disease isAsked in WBPSC CS Prelims 2021
9. EBOLA is aAsked in UPPSC Upper Mains 2014
10. ‘Eris’ is a new variant of which of the following diseases ?Asked in Executive Officer and Tax & Revenue Inspector Exam 2023
11. Maximum percentage of deaths due to Swine-flu epidemic among positive cases is from the yearAsked in KPSC KAS Prelims 2014
12. One out of every 200 babies born in India, dies of diarrhoea caused by :Asked in UPPSC Upper Mains 2010
13. The following virus is water borne:Asked in WBCS Main Paper 4 2019
14. Ǔनम्नͧलͨखत में से कौन सा जल जǓनत रोग है ?Asked in JUNIOR ACCOUNTANT AND TRA 2013
15. The polio virus enters the body throughAsked in Assistant Conservator of Forest (ACF) 2012
16. Which one among the following waterborne diseases is not caused by bacteria?Asked in HORTICULTURE DEVELOPMENT OF‐ FICER(HDO) 2015
17. Which one of the following diseases is not caused by viruses ?Asked in Group B Exam 2012
18. Which one of the following is true about Hepatitis-B ?Asked in Group B Exam 2012
19. The HIV virus weakens the immunity of a person because it destroysAsked in UPSC CDS 2 2016
20. Which of the following is in deficiency in body during 'Dengue' fever ?Asked in HPPSC HPAS Prelims 2017
21. In dengue fever, there is a deficiency of which of the following in the human body?Asked in HPPSC HPAS Prelims 2017
22. Interferons are glycoproteins which stimulate the synthesis of _________.Asked in KPSC KAS Prelims 2017
23. Consider the following conditions of sick human body Swollen lymph nodes Sweating at night Loss of memory Loss of weight Which of these are the symptoms of AIDS?Asked in UPPCS Prelims 2003
24. Dengue virus is known to cause low platelet count in blood of patient by : 1. interfering in the process of platelet production in bone marrow 2. infecting endothelial cells 3. binding with platelets 4. accumulating platelets in intestine Select the correct answer using the code given below :Asked in UPSC CDS 1 2016
25. Dengue virus causes high fever, rashes and reduces the number of a particular type of blood cells. Those blood cells areAsked in UPSC NDA 1 2017