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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195 questions
163. Mutation is
- a factor responsible for plant growth
- a change which affects the offspring of F2 generation only
- a change that is inherited
- a change which affects the parents
164. Ptyalin is an enzyme produced in the
- salivary glands
- pituitary glands
- thyroid glands
- pancreas
165. Norepinephrine increases
- respiration
- urine production
- saliva production
- blood pressure
166. Our major foods, fibres, spices, fruits and beverage crops are
- flowering plants
- gymnosperms plants
- pteridophytes
- bryophytes
167. Most of the red, blue and purple colours of plants are due to a pigment called
- anthocyanin
- carotene
- chlorophyll
- xanthophylls
168. Most abundant tissues of our body are
- muscular
- connective
- epithelial
- nervous
169. One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?
- Having waited a day, it is too late to take an antibiotic
- You need an antiseptic, not an antibiotic
- You need to be vaccinated instead of taking an antibiotic
- You are infected by a virus
170. Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?
- Order
- Subspecies
- Class
- Genus