AFMC Biology 2001


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  • AFMC Biology 2001

    2. 2. SECTION – I (Total Marks : 50) Single Correct Answer Type  There are five parts in this question. Four choices are given for each part and one of them is correct. Indicate you choice of the correct answer for each part in your answer-book by writing the letter (a), (b), (c) or (d) whichever is appropriate
    3. 3. 01 Problem A pleiotropic gene is one which a. Supplements effect of another gene b. Affects more than one character c. Affects one character d. Requires another gene for expression
    4. 4. 02 Problem Gibberellin was discovered from a. Bryophyte b. Fungus c. Algae d. Gymnosperm
    5. 5. 03 Problem Functional xylem of dicot tree is a. Heart wood b. Autumn wood c. Sap wood d. Hard wood
    6. 6. 04 Problem Transduction in bacteria is mediated by a. Plasmid vectors b. Phage vectors c. Cosmids d. F-factors
    7. 7. 05 Problem Reabsorption of water in distal parts of kidney tubules/urine concentration is controlled by a. Calcitonin b. Oxytocin c. Vasopressin d. Relaxin
    8. 8. 06 Problem Spreading kerosene oil on water kills mosquito because a. Mosquito cannot respire as kerosene forms a film on water surface b. It makes them to sink downwards c. Kerosene oil is toxic for them d. None of these
    9. 9. 07 Problem Which of the following is structural and functional unit of nervous system ? a. Neurons b. Neuroglia c. Axon d. Osteocyte
    10. 10. 08 Problem 2, 4-D is a. Rodenticide b. Insecticide c. Weedicide d. Nematicide
    11. 11. 09 Problem Pollen of animophilous plants are a. Small, dry and unwettabie b. Small and sticky c. Large and heavy d. Large, light and hygroscopic
    12. 12. 10 Problem Ginger multiplies vegetatively by a. Tuber b. Stem c. Bud d. Rhizome
    13. 13. 11 Problem The correct sequence of taxonomic categories is a. Division-class-family-tribe-order-genus – species b. Phylum-order-class-tribe-family-order - genus-species c. Class-phylum-tribe-order-family-genusspecies d. Division-class-order-family-tribe-genusspecies
    14. 14. 12 Problem Crossed pollination is preferred over self-pollination because a. It is easy b. It results in a better offspring c. The new varieties are formed d. Parthenogenesis can be induced
    15. 15. 13 Problem The production of seedless fruits is called a. Parthenocarpy b. Ovulation c. Pollination d. Eugenics
    16. 16. 14 Problem To find Ecolab cultures, you should look for a. Rabbits saliva b. Human intestine c. Human placenta d. Human hair
    17. 17. 15 Problem Which of the following diseases is nearly eradicated from India ? a. Small pox b. Poliomyelitis c. Plague d. Rabies
    18. 18. 16 Problem Which of the following is a bacterial disease? a. Ascariasis b. Leprosy c. AIDS d. Polio
    19. 19. 17 Problem Which of the following is not a part of Darwins theory of evolution ? a. Struggle for existence b. Survival of the fittest c. Genetic drift d. Natural selection
    20. 20. 18 Problem Nucleolus was discovered by a. Altmann b. Fontana c. Schleiden d. Robert brown
    21. 21. 19 Problem Which of the following is known as "Power House" of the cells ? a. Ribosomes b. Mitochondria c. Nucleus d. Cytoplasm
    22. 22. 20 Problem The basic structural unit of Kidney is a. Nephron b. Cortex c. Adrenal d. Medulla
    23. 23. 21 Problem Egg apparatus consists of a. Egg and two synergids b. Egg and central cell c. Egg and antipodal cells d. Egg and one synergid
    24. 24. 22 Problem Increase in fertility of soil without adding any nutrition is due to a. Favorable temperature b. Crop residue c. Floods d. Microbial activity
    25. 25. 23 Problem In bacteria, the site for respiration is a. Episome b. Mesosome c. Cytoplasm d. Plasmid
    26. 26. 24 Problem Which is common among Scorpion, Crab, Honeybee and Silverfish ? a. Poison glands b. Jointed legs c. Compound eyes d. Metamorphosis
    27. 27. 25 Problem In amphibian, the heart has a. One auricle and two ventricles b. Two auricles and one ventricle c. Two auricles and two ventricles d. One auricle, one ventricle and one sinus venous
    28. 28. 26 Problem The presence of large amount of nitrogen in the atmosphere is due to a. Nitrogen cycle b. Nitrites c. Decomposers d. Ammonia
    29. 29. 27 Problem An association between two different organisms in which one is always benefitted while the other remains unharmed is a. Mutualism b. Commensalism c. Symbiosis d. Succession
    30. 30. 28 Problem Bladderworm stage of Taenia solium is a. Rostella b. Strobila c. Onchosphere d. Cysticercus
    31. 31. 29 Problem Which of the following is an emergency hormone? a. Progestrone b. Prolactin c. Thyroxin d. Adrenalin
    32. 32. 30 Problem Ozone hole means a. Same concentration of ozone b. Decrease in the concentration of ozone c. Increase in the concentration of ozone d. Hole in the stratosphere
    33. 33. 31 Problem Now-a-days cornea transplantation has been done on large scale because a. It does not link up with blood vessels b. It has a transparent portion c. It is easily available d. None of these
    34. 34. 32 Problem How many bones are present in human skull ? a. 42 b. 22 c. 32 d. 12
    35. 35. 33 Problem Formation of blood is called a. Plasmolysis b. Hemopoiesis c. Plasmalysis d. Anaemia
    36. 36. 34 Problem Deviation from the normal size and shape of RBC is known as a. Poikilocytosis b. Anisocytosis c. Exocytosis d. None of these
    37. 37. 35 Problem Testes are protected in scrotum because a. They produce heat b. They produce sperm c. They help in micturation d. They control the ambient temperature lower than general body
    38. 38. 36 Problem Bacteria is included in which of the following Kingdom ? a. Monera b. Plantae c. Protista d. Animalia
    39. 39. 37 Problem The bite of Cobra attacks which of the following systems of man ? a. Respiratory b. Circulatory c. Digestive d. Nervous
    40. 40. 38 Problem Bees dance is meant for a. Happiness b. Communication c. Reproduction d. There is no such dance
    41. 41. 39 Problem Which of the following is an essential liquid ? a. Steroids b. Phospholipid c. Oils d. Fats
    42. 42. 40 Problem Wilting in plants occurs due to increase in a. Transpiration b. Photoperiodism c. Photosynthesis d. Osmosis
    43. 43. 41 Problem Which are purines ? a. Cystine and thymine b. Adenine and thymine c. Adenine and guanine d. Cytosine and guanine
    44. 44. 42 Problem Sweating is meant for a. Removal of excess salt b. Regulation of body temperature c. Killing of skin bacterid d. Removal of excess water
    45. 45. 43 Problem Electron microscope has more advantages than light microscope because it a. Gives depth focus b. Has higher magnification c. Requires no light d. Uses vacuum
    46. 46. 44 Problem Branch of biology dealing with mechanism of heredity is a. Euthenics b. Eugenics c. Genetics d. Cytology
    47. 47. 45 Problem Which of the following is not a function of vitamin ? a. Formation of organs b. Cell maturation c. Maintenance of organs d. Growth
    48. 48. 46 Problem Wildlife is destroyed most when a. Natural habitat is destroyed b. Mass scale hunting for foreign trade c. There is lack of proper care d. Natural calamity
    49. 49. 47 Problem Fungi differ from algae in being a. Parasitic b. Autotrophic c. Heterotrophic d. Epiphytic
    50. 50. 48 Problem Spirogyra filaments increase in length due to deficit drawn of a. Evergreen cells b. Rhizoidal cell c. Basal cells d. Apical cells
    51. 51. 49 Problem Grafting is not possible in monocots as they a. Are herbaceous b. Have parallel venation c. Lack auxin d. Have scattered vascular bundle
    52. 52. 50 Problem Sexual reproduction in plants was discovered by a. Camerarins b. Strasburger c. Nawaschin d. Hofmiester
    53. 53. For solution visit