Biology MCQs

11. In how many parts is the human brain divided?
[A] 2
[B] 4
[C] 3
[D] 5

Show Answer

12. Which of the following can be checked by doctors with the help of Pulse reading? (UPSC Prelims 1979).
[A] Temperature
[B] Heart beat
[C] Blood pressure
[D] Respiration rate

Show Answer

13. It has been observed that after-effects of low temperature treatment are helpful in promoting the flowering in certain plants. Through this the vegetative period of plant becomes short and early flowering takes place. Which of the following is the name given to the phenomenon? (UPSC Prelims 1992)
[A] Photoperiodism
[B] Floreignation
[C] Vernalisation
[D] Heliotropism

Show Answer

14. Pollination by which among the following is called as ornithophily?
[A] Rodents
[B] Aquatic animals
[C] Ants
[D] Birds

Show Answer

15. Which of the following branch of biology deals with the study of pollen grains?
[A] Psychology
[B] Palynology
[C] Pathology
[D] Parasitology

Show Answer

16. Splanchnology is a branch of biology dealing with __?
[A] Study of visceral organs
[B] Study of species
[C] Study of bony joints and ligaments
[D] Study of forget including buccal cavity and stomach

Show Answer

17. Who is the father of Modern Botany?
[A] Carl Linnaeus
[B] Theophrastus
[C] Robert Hooke
[D] Krateuas

Show Answer

18. Which of the following is the function of contractile vacuole?
[A] To carry out pinocytosis
[B] To carry out metabolic process
[C] To pump excess water out of the cell
[D] To carry out phagocytosis

Show Answer

19. In cell culture, the measles virus can lead to which of the following?
[A] nuclear pyknosis
[B] transformation of cells
[C] syncytium formation
[D] rounding and aggregation of cells

Show Answer

20. What is involved in the release of pollen grains?
[A] Pectin and cellulose
[B] Lignocellulose
[C] Pollenkit
[D] Sporopollenin

Show Answer