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: Bacterial Diseases →

1. Most widely used bioweapon isAsked in TNPSC CS Prelims 2019
2. Disease responsible for huge economic losses to dairy industry every year isAsked in Agri. Officer 2020
3. Causative agent of haemorrhagic septicaemia is ______.Asked in RO ARO pre 2016 · Food Safety Officer 2019
4. The incorrect pair of food borne illness and its causative microorganism is :Asked in Food Safety Officer 2022
5. Which statement is correct about Brucellosis in cattle and Buffaloes ? - It is a reproductive disease of cattle and Buffaloes. - It is a metabolic disease of cattle and Buffaloes. - It is a viral disease of cattle and Buffaloes. - It is a skin disease of cattle and buffaloes.Asked in Food Safety Officer 2022
6. Which of the following diseases are / is caused by bacteria? 1) Leprosy 2) Plague 3) Mumps 4) Polio Select the correct answer using the code given below : Code :Asked in Civil Judge 2018
7. "Brucellosis" is a disease caused by -Asked in Civil Judge 2022
8. Which of the following is bacterial disease of cattle?Asked in mineral dev officier 2025
9. Antibiotic such as penicillin blocksAsked in UPSC CDS 2 2020
10. Which one of the following statements regarding Penicillin is correct ?Asked in UPSC NDA 1 2019
11. The term antibiotic was coined byAsked in UKPSC CS Prelims 2024
12. Sulpha drugs are effective against diseases caused by:Asked in RPSC RAS Prelims 1996
13. What is the name of antibiotics that has been discovered to help in fighting drug resistant or hard-to-treat bacterial infections?Asked in WBCS Main Paper 4 2023
14. Penicillin was discovered by : (b) Waldeyer Fleming (c) Alexander Fleming (d) Robert HookeAsked in ukpsc 2025 2025
15. Waksmann was awarded Noble Prize for the discovery of :Asked in Paper I 4
16. The bacillus heamophilus influenza causesAsked in UPPCS Prelims 2022
17. The pathogen of pneumonia isAsked in Clerk GR II Comb. Comp. Exam 2013
18. Pneumonia in animals occurs due to faulty administration of drugs is ____.Asked in Food Safety Officer 2019
19. Neisser in 1879 discovered a sexually transmitted disease known asAsked in TNPSC CS Prelims 2014
20. Which one of the following statements regarding Cholera is correct ?Asked in UPSC NDA 1 2019
21. Triple antigen is given to a child to prevent :Asked in UPPCS Prelims 1994
22. India is declared free from trachoma which takes place due to infection of ________ in the eye.Asked in GPSC Prelims CSP 2 2021
23. Which one of the following diseases is not a bacterial disease ?Asked in RPSC RAS Prelims 2023
24. The causative organism of Whooping CoughAsked in TNPSC CS Prelims 2024
25. The primary source of bacteria causing ropiness of milk is :Asked in Food Safety Officer 2022