2013 AIMPT - Biology


1. Select the wrong statement:




2. Which one of the following is not a correct statement?




3. Isogamous condition with non-flagellated gametes is found in




4. Besides paddy fields, cyanobacteria are also found inside vegetative part of




5. Megasporangium is equivalent to




6. Read the following statements (A-E) and answer the question which follows them
(A) In liverworts, mosses, and ferns gametophytes are free-living
(B) Gymnosperms and some ferns are heterosporous
(C) Sexual reproduction in Fucus, Volvox and Albugo is oogamous
(D) The sporophyte in liverworts is more elaboratethan that in mosses
(E) Both, Pinus and Marchantia are dioecious
How many of the above statements are correct ?




7. Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sunnhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, withania, potato, onion, aloe and tulip how many plants have hypogynous flower?




8. Interfascicular cambium develops from the cells of




9. In China rose the flowers are




10. Lenticels are involved in




11. Age of a tree can be estimated by




12. Seed coat is not thin, membranous in




13. Transition state structure of the substrate formed during an enzymatic reaction is




14. A phosphoglyceride is always made up of




15. Pigment-containing membranous extensions in some cyanobacteria are




16. A major site for synthesis of lipids is




17. The complex formed by a pair of synapsed homologous chromosomes is called




18. The three boxes in this diagram represent the three major biosynthetic pathways in aerobic respiration. Arrows represent net reactants or products. Arrows numbered 4,8, and 12 can all be






19. The most abundant intracellular cation is




20. During seed germination its stored food is mobilized by




21. Which of the following criteria does not pertain to facilitated transport ?




22. The first stable product of fixation of atmospheric nitrogen in leguminous plants is




23. Which of the metabolites is common to respiration mediated breakdown of fats, carbohydrates and proteins?




24. Which one of the following statements is correct?




25. Product of sexual reproduction generally generates




26. Meiosis takes place in




27. Advantage of cleistogamy is




28. Monoecious plant of Chara shows occurrence of




29. Perisperm differs from endosperm in




30. Which of the following statements is not true of two genes that show 50% recombination frequency?




31. Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as




32. If two persons with 'AB' blood group marry and have sufficiently large number of children, these children could be classified as 'A' blood group : 'AB' blood group : 'B' blood group in 1 : 2 : 1 ratio. Modern technique of protein electrophoresis reveals presence of both 'A' and 'B' type proteins in 'AB' blood group individuals. This is an example of




33. The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge, is called




34. The tendency of population to remain in genetic equilibrium may be disturbed by




35. Which of the following Bt crops is being grown in India by the farmers?




36. A good producer of citric acid is




37. DNA fragments generated by the restriction endonucleases in a chemical reaction can be separated by




38. Which of the following is not correctly matched for the organism and its cell wall degrading enzyme?




39. The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of




40. Which of the following are likely to be present in deep sea water?




41. Natural reservoir of phosphorus is




42. Secondary productivity is rate of formation of new organic matter by




43. Which one of the following is not used for ex situ plant conservation?




44. Kyoto Protocol was endorsed at




45. Which of the following represent maximum number of species among global biodiversity?




46. Match the name of the animal (Column I) with one characteristics (Column II) and the phylum/class (column III) to which it belongs.
Column IColumn IIColumn III
(1)PetromyzonEctoparasiteCyclostomia
(2)IchthyTerrestialReptila
(3)LimulusBody Covered by chitinous exoskeletonPisces
(4)AdamsiaRadially symmetricalPorifera





47. Which of the following are correctly matched with respect to their taxonomic classification?




48. Which group of animals belong to the same phylum?




49. One of the representatives of Phylum Arthropoda is




50. The H-zone in the skeletal muscle fibre is due to




51. What external changes are visible after the last moult of a cockroach nymph?




52. The Golgi complex plays a major role




53. Which one of the following organelle in the figure correctly matches with its function?






54. Macro molecule chitin is




55. The essential chemical components of many coenzymes are




56. A stage in cell division is shown in the figure. Select the answer which gives correct identification of the stage with its characteristics.






57. Select the correct match of the digested products in humans given in column I with their absorption site and mechanism in column II:




58. A pregnant female delivers a baby who suffers from stunted growth, mental retardation low intelligence quotient and abnormal skin. This is the result of




59. The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and/or characteristic.






60. Figure shows schematic plan of blood circulation in humans with labels A to D. Identify the label and give its function/s.






61. The diagram given here is the standard ECG of a normal person. The P-wave represents the






62. Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristics and/ or functions




63. Select the correct statement with respect to locomotion in humans




64. The characteristics and an example of a synovial joint in humans is




65. A diagram showing axon terminal and synapse is given. Identify correctly at least two of A-D






66. Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions/characteristics






67. Which of the following statement is correct in relation to the endocrine system?




68. Select the answer which correctly matches the endocrine gland with the hormone it secretes and its function/ deficiency symptom






69. What is the correct sequence of sperm formation?




70. Menstrual flow occurs due to lack of




71. Which one of the following is not the function of placenta? It




72. One of the legal methods of birth control is




73. Which of the following cannot be detected in a developing foetus by amniocentesis ?




74. Artificial insemination means




75. Which Mendelian idea is depicted by a cross in which the F1 generation resembles both the parents ?




76. The incorrect statement with regard to Haemophilia is




77. If both parents are carriers for thalassemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?




78. The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C






79. Which enzyme/s will be produced in a cell in which there is a nonsense mutation in the lac Y gene?




80. According to Darwin, the organic evolution is due to




81. The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of




82. Infection of Ascaris usually occurs by




83. The cell-mediated immunity inside the human body is carried out by




84. In plant breeding programmes, the entire collection(of plants/seeds) having all the diverse alleles for all genes in a given crop is called




85. During sewage treatment, biogases are produced which include




86. A biologist studied the population of rats in a barn. He found that the average natality was 250, average mortality 240, immigration 20 and emigration 30. The net increase in population is




87. Which one of the following processes during decomposition is correctly described?




88. A sedentary sea anemone gets attached to the shell lining of hermit crab. The association is




89. Global warming can be controlled by




90. The Air Prevention and Control of Pollution Act came into force in




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