General Biology Set 2 1000+ MCQ with answer for RBI Grade B officer

1. The workers in the honey bee colony are
A. males
B. females
C. sterile females
D. intersex
Answer : C

2. The part of the brain which is responsible for intelligence is
A. cerebrum
B. opthalmic
C. cochlea
D. semicircular canals
Answer : A

3. Dr Khorana's work relates to
A. synthesis of simple DNA
B. genetic code
C. reduction of mutation
D. synthesis of RNA from bacterial cell
Answer : B

4. Somato Tropic Hormone is concerned with
A. Body growth
B. Metamorphosis
C. Digestion
D. Reproduction
Answer : A

5. Pearl is secreted by the __________ of the pearl oyster.
A. foot
B. mantle
C. gills
D. None of these
Answer : B

6. The influenza vaccine was discovered by
A. Salk
B. Khorana
C. Mittel
D. None of the above
Answer : A

7. The olfactory area is concerned with
A. smell
B. sight
C. hearing
D. speech
Answer : A

8. Rh+ blood is due to genes which are
A. dominant
B. recessive
C. codominant
D. neutral
Answer : A

9. The insect vector for the disease Leishmaniasis is
A. Tsetse fly
B. Culex
C. Phlebotomus
D. Anopheles
Answer : C

10. Decomposition of organic matter is due to
A. Virus
B. Fungi
C. Bacteria
D. None of these
Answer : C

11. Edward Jenner to find out the efficacy of vaccination used
A. his own body
B. his friend's body
C. a corpse
D. a laboratory animal
Answer : A

12. Which organism probably arrived first in the world?
A. Algae
B. Fungi
C. Protozoa
D. None of the above
Answer : A

13. The bile contains the pigments
A. haemoglobin and haemoerythrin
B. biliviridin and bilirubin
C. bilirubin and haemocyanin
D. haemoglobin and biliviridin
Answer : B

14. Riboflavin is otherwise known as
A. vitamin B-complex
B. vitamin B2
C. vitamin A
D. vitamin E
Answer : B

15. The function of a cell wall is
A. to give definite shape to the cell
B. to provide mechanical strength and protection to the cell
C. to prevent the cell from desiccation
D. All the above
Answer : D

16. The cellular and molecular control o( programmed cell death is known as
A. Apoptosis
B. Ageing
C. Degeneration
D. Necrosis
Answer : A

17. The tear glands help us in
A. sobbing
B. protecting the eye
C. preventing dust
D. providing a clean moist surface
Answer : D

18. Excess of amino-acids are broken down to form urea in the
A. Liver
B. Kidney
C. Spleen
D. Rectum
Answer : A

19. Fishes send out their nitrogenous waste as
A. ammonia
B. urea
C. uric acid
D. sweat
Answer : A

20. Blood is a kind of
A. epithelial tissue
B. connective tissue
C. nervous tissue
D. cartilage
Answer : B

21. Cancer is induced by certain viruses called
A. poxviruses
B. adenoviruses
C. oncogenic viruses
D. herpesviruses
Answer : C

22. Late Blight' is a disease that affects the _______ crop.
A. coconut
B. cashew
C. potato
D. pepper
Answer : C

23. Sleeping sickness in man is caused by the organism
A. plasmodium
B. entamoeba
C. giardia
D. trypanosome
Answer : D

24. Valves are present inside
A. arteries
B. capillaries
C. veins
D. aorta
Answer : C

25. Organisms that depend only on raw plant products are said to be
A. herbivorous
B. vegetarian
C. carnivorous
D. omnivorous
Answer : A

26. Wallace's line is a line
A. drawn by Darwin
B. across the mountains
C. between two zoo-geographical areas
D. between different classes of animals
Answer : C

27. When one gene controls two or more different characters simultaneously, the phenomenon is called
A. Apomixis
B. Pleiotropy
C. Polyploidy
D. Polyteny
Answer : B

28. The plant that is dispersed with the help of water is
A. mango
B. coconut
C. teak
D. paddy
Answer : B

29. Intravascular clotting of blood is known as
A. anaemia
B. leucopenia
C. thrombosis
D. thrombin
Answer : C

30. What are the symptoms of Xeroph-thalmia?
A. eye weakness
B. dry skin and night blindness
C. nervous break down
D. All the above
Answer : B

31. Jaundice is caused by a/an
A. virus
B. bacteria
C. fungus
D. animal
Answer : A

32. Kwashiorkar is a deficiency disease
A. due to poor intake of proteins
B. due to poor intake of carbohydrates
C. due to (a) and (b)
D. due to poor intake of lipids
Answer : A

33. Genes are arranged in chromosomes
A. In clusters
B. In binary fashion
C. In linear fashion
D. Scattered
Answer : C

34. What is an antigen?
A. Toxic substance
B. A kind of protein
C. Blood platelets
D. Blood corpuscles
Answer : B

35. The juice from the leaves of ________ is used for the treatment of diarrhoea, cholera and dysentery.
A. Caeselpinea
B. Bryophyllum
C. Centella
D. None of the above
Answer : B

36. Blood cancer is otherwise called
A. Leukaemia
B. Leucoderma
C. Leucocytopenia
D. Erythrocemia
Answer : A

37. 1 gm of carbohydrate gives energy which is about
A. 3 k cal
B. 2 k cal
C. 4.2 k cal
D. 8.1 k cal
Answer : C

38. The radicle of the seeding always grows
A. towards the gravity
B. away from gravity
C. neutral to gravity
D. towards light
Answer : A

39. Who coined the term gene?
A. Mendel
B. Devries
C. Jacob and Monod
D. Johanson
Answer : D

40. Insect pollination is known as
A. Hydrophily
B. Ornithophily
C. Anemophily
D. Entomophily
Answer : D

41. Which one of the following is viral disease?
A. Syphilis
B. Influenza
C. Lock Jaw
D. Typhoid
Answer : B

42. Waldeyer gave the name
A. microsome
B. chromosome
C. ribosome
D. lysosome
Answer : B

43. The 'graveyard of the RBC' refers to
A. spleen
B. liver
C. bone marrow
D. thymus
Answer : A

44. In movable joints the tips of the bones are covered with
A. hyaline cartilage
B. calcified cartilage
C. elastic cartilage
D. fibrous cartilage
Answer : A

45. Foal' is the young on of the
A. Cat
B. Lion
C. Tiger
D. Horse
Answer : D

46. The counting of RBCs is done with
A. haemocytometer
B. haemoglobinometer
C. clinostat
D. thermometer
Answer : A

47. Higher plants take up nitrogen as
A. Nitrites only
B. Nitrates only
C. Nitrates and Ammonia
D. Urea
Answer : C

48. Hormone promoting maleness in flowering plants is
A. Indole Acetic Acid
B. Kinetin
C. Cytokinin
D. Gibberellin
Answer : D

49. The biologist who believed in the spontaneous creation of microorganisms was
A. Leuwenhock
B. Needham
C. Spallanzeni
D. Pasteur
Answer : B

50. Temperature treatment which shortens the vegetative period and hastens the flowering is called
A. Phototropism
B. Photoperiodism
C. Vernalisation
D. Thermoregulation
Answer : C