Biology MCQ Question with Answer
Q1. The book ‘Genera Plantarum’ was written by–
(b) Bentham and Hooker
(c) Engler and Pringle
Q2. The branch of biology dealing with the study of cells is known as–
Q3. The xylem in plants are responsible for:
(a) Transport of water
(b) Transport of food
(c) Transport of amino acids
(d) Transport of oxygen
Q4. What is the plant cell wall mainly composed of?
Q5. AIDS virus destroys
Q6. Yeast is a .
Q7. The tallest and thickest type of grass is–
Q8. The only snake that builds a nest is:
(a) Chain viper
(b) King Cobra
(d) Saw-scaled viper
Q9. Match List-I (Physiological processes) with List-II (Cell organelles) and select the correct answer by using the codes given below:
|A. Photosynthesis||1. Plasma membrane|
|B. Mineral uptake||2. Chloroplast|
|C. Respiration||3. Mitochondria|
|D. Protein synthesis||4. Ribosomes|
(a) A – 1; B – 2; C – 3; D – 4
(b) A – 1; B – 2; C – 4; D – 3
(c) A – 2; B – 1; C – 3; D – 4
(d) A – 2; B – 1; C – 4; D – 2
Q10. The gas released during photosynthesis :
(a) Carbon dioxide
(c) Carbon monoxide
(d) Sulfur dioxide
Q11. What is the name of the hormone produced by the thymus gland?
Q12. DNA differs from RNA in having a nitrogenous base–
Q13. HYV refers to–
(a) Hybrid Yielding Variety
(b) Human Yellow Virus
(c) High Yielding Variety
(d) Human Yellow Vaccine
Q14. Which one of the following is a modified stem?
(b) Sweet potato
Q15. A test-tube baby means–
(a) A baby grew in a test-tube
(b) Embryo fertilised in the uterus and developed in test-tube
(c) Embryo fertilised and developed in the uterus
(d) Fertilisation in vitro and then transplantation in the uterus
Q16. What is the chromosome number in a human ovum?
(d) None of these
Q17. Which of the following is the Study of fossils?
Q18. Which of the following are warm-blooded animals?
(b) Whale sharks
Q19. Mon 863 is a variety of maize. It was in the news for the following reason.
(a) It is a genetically modified dwarf variety that is resistant to drought
(b) It is a genetically modified variety that is pest resistant
(c) It is a genetically modified variety with ten times higher protein content than regular maize crop
(d) It is a genetically modified variety used exclusively for biofuel production
Q20. Consider the following statements:
- Biodiversity hotspots are located only in tropical regions.
- India has four biodiversity hotspots i.e., Eastern Himalayas, Western Himalayas, Western Ghats and Andaman and the Nicobar Islands.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Q21. The double-helix model of Watson and Crick is known as
Q22. The camel’s hump is composed of tissue. It is a type of
(a) skeletal tissue
(b) areolar tissue
(c) adipose tissue
(d) muscular tissue
Q23. Which one of the following sets are correctly matched?
(1) Diphtheria, Pneumonia and Leprosy: Hereditary
(2) AIDS, Syphilis and Gonorrhoea: Bacterial
(3) Colour blindness, Haemophilia and Sickle cell anaemia: Sex-linked
(4) Polio, Japanese B encephalitis and Plague: Viral
(a) Only 2
(b) only 3
(c) 1 and 4
(d) None of these
Q24. Uric acid is the chief nitrogenous waste of which of the following?
Q25. An antigen is a substance which
(a) lowers body temperature
(b) destroys harmful bacteria
(c) triggers the immune system
(d) is used as an antidote to the poison