GS Biology Questions and Answers
GS Biology questions with answers enhance your general science knowledge, especially for exams like SSC, Railways, and UPSC. Biology is an important branch of general science that deals with the study of life, organisms, and their vital processes. These general science questions and answers cover topics such as cells, human anatomy, genetics, and ecology — frequently asked in competitive exams. Practicing these questions helps you understand biological concepts clearly and boosts your score in the general awareness section. Strengthen your science fundamentals and prepare effectively for multiple-choice questions in upcoming tests.
GS Biology
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357 questions
191. Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes
- tetanus
- influenza
- cholera
- typhoid
192. Plants hormone that induces cell division is
- auxins
- gibberellins
- kinins
- domins
193. Pollination is best defined as
- transfer of pollen from anther to stigma
- germination of pollen grains
- growth of pollen tube in ovule
- visiting flowers by insects
194. Photosynthesis is a process
- reductive and exergonic
- reductive and catabolic
- reductive, endergonic and catabolic
- reductive, endergonic and anabolic
196. The Galapagos Islands are associated with the visit of
- Jean Lamarck
- Charles Darwin
- Gregor Mendel
- Alfred Wallace
197. Which of the following was most influential upon Darwin’s formulation of theory of natural selection?
- De Vries concept of mutation
- Wallace’s paper on survival
- Malthus’s essay on population
- Lamarck’s on inheritance of acquired characters
198. ‘Survival of the fittest’ was used by
- Charles Darwin
- Jean Baptiste Lamarck
- Hugo de Vries
- Herbert Spencer
199. After observing the variations Hugo de Vries first described the mutation in
- Oenothera lamarkiana
- Neurospora crassa
- Pisum sativum
- Drosophila melanogaster
200. According to scientists, the Big Bang occurred approximately how many years ago?
- 100 million
- 100 thousand
- 1 billion
- 15 billion