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 →

26. Which one of the following statements is not correct?Asked in UPSC IAS 2019
27. The term 'ACE2' is talked about in the context ofAsked in UPSC IAS 2021
28. What is the causative agent of West Nile fever ?Asked in UPSC Combined Section Officer 2024
29. Which of the following gets deficient in the human body due to Dengue fever ?Asked in UPPCS Prelims 2012
30. Hydrophobia is caused byAsked in UPPSC Upper Mains 2008
31. Diseases of which of the following pairs are caused by virus ?Asked in UPPSC Upper Mains 2011
32. Foot-and-mouth disease in animals, a current epidemic in some parts of the world, is caused byAsked in UPPCS Prelims 2002
33. The primary organ affected by COVID 19 isAsked in WBCS Main Paper 4 2023
34. Egtved disease is also called as (1) Infectious pancreatic necrosis (2) Viral haemorrhagic septicaemia (3) Infectious haemopoietic necrosis (4) Infectious dropsy (5) Question not attemptedAsked in Asst. Fisheries Development Officer 2024
35. A scientist wants to study the virus of a plant suffering from a viral disease; which of the following plant part should be excluded ?Asked in Junior Accountant and TRA 2013
36. Which of the following causes Polio disease ?Asked in Assistant Conservator of Forest Exam 2019
37. Polio disease is caused by-Asked in ASCO 2014
38. HIV virus causesAsked in Economic Investigator(EI) 2018
39. Which of the following diseases is viral ?Asked in Combined (Group C) Exam 2023
40. Which one of the following statements is correct about effects of antibiotics on viruses ?Asked in UPSC NDA 2 2020
41. AIDS is caused by the Human Immuno-deficiency Virus (HIV). The transmission of HIV infection generally occurs throughAsked in UPSC CDS 1 2017
42. Which of the following are the risk factors in the transmission of the HIV infection ? 1. Smoking and drinking alcohol 2. Observing bad hygiene 3. Blood transfusion 4. Unprotected sex Select the correct answer using the code given below :Asked in UPSC CAPF 2010
43. Which of the following is/are the methods of prevention from HIV infection ? 1. Use of condoms. 2. Use of intra-uterine devices like Copper-T. 3. Staying away from HIV infected person. 4. Using a face mask when in company of HIV infected person. Select the correct answer using the code given below :Asked in UPSC CAPF 2010
44. Consider the following statements: 1. In tropical regions, Zika virus disease is transmitted by the same mosquito that transmits dengue. 2. Sexual transmission of Zika virus disease is possible. Which of the statements given above is/are correct?Asked in UPSC IAS 2017
45. Consider the following statements: AIDS is transmitted I. by sexual intercourse. II. by blood transfusion. III. by mosquitoes and other blood sucking insects. IV. across the placenta. Of these statementsAsked in UPPCS Prelims 1996
46. The reuse of disposed needles and syringes may cause infections ofAsked in WBCS Main Paper 4 2022
47. The following Hepatitis virus is transmitted through blood.Asked in WBCS Main Paper 4 2023
48. HIV stands for Human Immuno-deficiency Virus Human Immuno-deficiency Value High Immune-deficient Value High Immune- deficiency VirusAsked in Clerk GR II Comb. Comp. Exam 2013
49. Cervical cancer is caused byAsked in Government Polytechnic Lecturer Group B Exam 2015 16 2015
50. The causal organism of dengue fever is a mosquito-borne virus which belongs to which one among the following categories?Asked in UPSC CDS 1 2024