LIC AAO - General Biology Set 2 1000+ MCQ [Solved] PDF Download

1. Bats can fly in the dark because
A. they have a better vision in the dark
B. the light startles them
C. they produce high pitched sounds called ultrasonics
D. None of the above
Answer : C

2. Blood clot Inside blood vessels is prevented by
A. heparin
B. fibrinogen
C. thrombin
D. prothrombin
Answer : A

3. The cavities of the brain are filled with
A. Blood
B. Lymph
C. Water
D. Cerebrospinal fluid
Answer : D

4. Eugenics is the application of genetics to improve
A. crop plants
B. fruit trees
C. cattle
D. human beings
Answer : D

5. Necrosis is a symptom which is recognised by
A. pattern colouration on leaves
B. little leaves
C. out growth
D. death of tissues
Answer : D

6. Niche' refers to
A. place of living
B. type of food
C. place of living and type of food
D. food and movement
Answer : C

7. Which among the following cows give maximum milk yields?
A. Jersey
B. Holstein
C. Red Sindhi
D. Sahiwal
Answer : A

8. India's first transgenic crop was
A. Potato
B. Brinjal
C. Sugarcane
D. Bt cotton
Answer : D

9. Leafy trees help in preventing
A. Land pollution
B. Water pollution
C. Noise pollution
D. Air pollution
Answer : C

10. HIV causes
A. cancer
B. hepatitis
C. AIDS
D. Herpes
Answer : C

11. Two tall plants, each being a hybrid and carrying a recessive factor for dwarfness are crossed. What proportion of their offspring will be dwarf?
A. 0.5
B. 0.25
C. 0.75
D. 1
Answer : B

12. Scurvy is a disease caused by the deficiency of vitamin.
A. A
B. B
C. C
D. D
Answer : C

13. Spontaneous generation signifying the development of living organisms from non-living has been termed
A. Biogenesis
B. Abiogenesis
C. Cosmozoic
D. Catastrophism
Answer : B

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

15. Which among the following vitamins is considered to be a harmone?
A. A
B. B
C. C
D. D
Answer : B

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

17. Nephantis is popularly called
A. coconut caterpillar
B. brown plant hopper
C. tobacco caterpillar
D. pulse beetle
Answer : A

18. Which among the following is a communicable disease?
A. Beri Beri
B. Diabetes
C. Leucoderma
D. Dysentery
Answer : D

19. Chemical substances that called have effect on growth of plants are called
A. enzymes
B. catalysts
C. hormones
D. pesticides
Answer : C

20. Which of the following is a good and rich source of vitamin 'C'?
A. Milk
B. Radish
C. Mango
D. Lemon Juice
Answer : D

21. An organism eating its own species is called
A. carnivore
B. detritivore
C. cannibal
D. herbivore
Answer : C

22. Sex linked genes are carried by
A. X-chromosomes
B. Y-chromosomes
C. different part of X- and Y-chromosomes
D. autosomes
Answer : C

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

24. The principal reason why it is better to have two eyes than one is that
A. by having two eyes, one can distinguish colours more easily
B. by having two eyes, one can easily see in the dark and dim light
C. this gives the man a type of vision known as mosaic vision
D. this enhances depth perception in the humans
Answer : D

25. Sterilization, as the means for the prevention of sepsis in surgery, was practised and advocated by
A. Louis Pasteur
B. Edward .Jenner
C. Joseph Lister
D. Martinus Willem Beijerinck
Answer : C

26. The hormone that contains iodine is
A. Prolactin
B. Vasopressin
C. Thyroxine
D. Adrenalin
Answer : C

27. Organisms that feed on the excreta of other organisms are called
A. autotrophs
B. heterotrophs
C. coprophagous
D. saprotrophs
Answer : C

28. If a father has blood group A and the mother has blood group 0, which one of the blood groups may be found in their progeny?
A. A
B. AB
C. O
D. Both (a) and (c)
Answer : D

29. 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

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

31. The liver destroys old
A. leucocytes
B. thrombocytes
C. erythrocytes
D. lymphocytes
Answer : C

32. Nekton are those organisms
A. which cannot be netted
B. which are independent of tides and waves
C. which have long necks
D. None of the above
Answer : B

33. Nephrons are found inside
A. Liver
B. Lung
C. Brain
D. Kidneys
Answer : D

34. The counting of RBC's can be performed by
A. Haemocytometer
B. Haemoglobinometer
C. Clinostat
D. Thermometer
Answer : A

35. Milk fever in cows occurs due to lack of
A. Phosphates
B. Calcium
C. Iron
D. Iodine
Answer : A

36. The closing and opening of the leaves of Mimosa pudica (Touch me not) plant is due to _______ movement.
A. chemonastic
B. seismonastic
C. thermonastic
D. photonastic
Answer : B

37. Appearance of offspring resembling their remote ancestor is called
A. Atavism
B. Lethality
C. Mutation
D. Progeny
Answer : A

38. The golden age of Dinosaurs was
A. Palaezoic
B. Cenozoic
C. Mesozoic
D. Proterozoic
Answer : C

39. Which one of the following cells helps in storing water and food materials?
A. Parenchyma cell
B. Flame cell
C. Nematoblast
D. None of the above
Answer : A

40. 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

41. The hormone which is Popularly called as stress hormone is
A. Epinephrine
B. Cortisone
C. Thyroxine
D. Insulin
Answer : A

42. The protein synthesis takes place in
A. Ribosomes
B. Chromosomes
C. DNA
D. None of these
Answer : A

43. The normal systolic blood pressure is
A. 140
B. 120
C. 180
D. 80
Answer : B

44. DNA is found
A. only in cytoplasm
B. only in nucleus
C. in both cytoplasm and nucleus
D. in hybrid form only
Answer : C

45. Plant diseases are spread by
A. insects
B. man
C. wind
D. All the above
Answer : D

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

47. Injection of insulin causes
A. increase in glucose in blood
B. decrease in glucose in blood
C. increase in blood pressure
D. decrease in blood pressure
Answer : B

48. Plants growing in saline marsh habitats are called
A. Xerophytes
B. Aerophytes
C. Saprophytes
D. Halophytes
Answer : D

49. AIDS is caused by the organisms which are
A. bacteria
B. fungi
C. viruses (HTLV III)
D. Protozoa
Answer : C

50. The endocrine glands secrete
A. bile
B. harmones
C. sweat
D. genes
Answer : B