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: Genetic Engineering and Biotechnology →

1. ‘Edible Vaccines’ containAsked in GPSC Prelims CSP 2 2017
2. Which of the following statements is/are correct regarding Gene Testing? 1. Gene testing can be used to determine a person's ancestry 2. Gene testing may help in preventing genetic disordersAsked in GPSC Prelims CSP 2 2019
3. Which of the following statements are correct regarding DNA Vaccines? 1. These vaccines are made up of a small, circular piece of bacterial DNA 2. In these vaccines a piece of bacterial DNA carrying antigen is directly given to human beings. 3. It releases antigen which activates our immune system.Asked in GPSC Prelims CSP 2 2021
4. The term ‘Probiotic’ is applied toAsked in UPSC NDA 2 2017
5. ICMR published “National Guidelines for Gene Therapy Product Development and Clinical Trials”. Which of the following statements are correct about Gene Therapy Product (GTP) ? 1. It is defined as any biological entity, having the required gene, that could introduce modifications in the genome for therapeutic benefit. 2. GTPs work by repairing, replacing or deactivating disease-causing genes to restore normal function. 3. As per the New Drugs and Clinical Trial Rules (2019), the GTPs falls under ‘new drug’ and shall always be deemed as ‘new drug’. 4. Thalassemia, Gaucher's disease, Sickle cell anaemia and Haemophilia fall under the genetically inherited disease category. Select the correct answer using the code given below :Asked in PPSC CS Prelims 2021
6. Match the below products of biotechnology with their application for treatment of various diseases/disorders. A B 1. Treating Haemophil‐Asked in TSPSC Group 1 Prelims 2022
7. The hybridoma technique was developed by whom ?Asked in UKPSC CS Prelims 2024
8. Sinovac given for Covid-19 is aAsked in UPPCS Prelims 2022
9. With reference to recent developments regarding Recombinant Vector Vaccines, consider the following statements: Genetic engineering is applied in the development of these vaccines. Bacteria and viruses are used as vectors. Which of the statements given above is/are correct?Asked in UPSC IAS 2021
10. The 2024 Nobel Prize in Physiology or Medicine was awarded to Victor Ambros and Gary Ruvkun for discovering :Asked in RO ARO pre 2023
11. Rajiv Gandhi Centre for Biotechnology is situated atAsked in RPSC RAS Prelims 2023
12. In the context of the developments in Bioinformatics, the term 'transcriptome', sometimes seen in the news, refers toAsked in UPSC IAS 2016
13. ‘Aerial metagenomics’ best refers to which one of the following situations?Asked in UPSC IAS 2023
14. Biochip containsAsked in UPPSC Upper Mains 2008
15. The research work of Paul Lauterbur and Peter Mansfield, the Nobel Prize winners for Medicine in 2003, relates to:Asked in UPPCS Prelims 2004
16. A Bio-technique in which Ultrasonic sound is used:Asked in RPSC RAS Prelims 2012
17. An organism for which 'the human genome project' that finished in 2003 did not sequence the genome is - a) mouse - b) fruit fly - c) yeast - d) monkeyAsked in FINANCE AND ACCOUNTS OFFICER TREASURY OFFICER 2016
18. With which of the following is the word ‘Genome’ associated ?Asked in Forest Range Officer Exam 2012
19. Cancer causing genes are called :Asked in Government Dairy Supervisor and Sugar Cane
20. With reference to agriculture in India, how can the technique of 'genome sequencing', often seen in the news, be used in the immediate future ? 1. Genome sequencing can be used to identify genetic markers for disease resistance and drought tolerance in various crop plants. 2. This technique helps in reducing the time required to develop new varieties of crop plants. 3. It can be used to decipher the host- pathogen relationships in crops. Select the correct answer using the code given below :Asked in UPSC IAS 2017
21. The sequencing of the entire genome (the totality of all genes) of an organism was completed in 1996. The organism wasAsked in UPPCS Prelims 1997
22. X-ray diffraction data for double helix model for structure of DNA were produced by : and Francis CrickAsked in Clerk GR II Comb. Comp. Exam 2013
23. DNA fingerprinting is used forAsked in GPSC Prelims CSP 2 2023
24. Which of the following statements are correct ? 1. The DNA Technology (Use and Application) Regulation Bill, 2019 provides for the regulation of use of DNA technology for establishing the identity of certain persons. 2. DNA is made up of 26 pairs of chromosomes and provides instructions for building an entire organism and proteins. 3. DNA is composed of two chains, which coil around each other to form a double helix carrying the genetic instructions used in the growth. 4. Under the Bill, DNA profiling is allowed only in respect of criminal matters. Select the correct answer using the code given below :Asked in PPSC CS Prelims 2021
25. The basis of DNA finger printing isAsked in RPSC RAS Prelims 2018