2016 Neet I - Biology


1. Gause’s principle of competitive exclusion states that




2. The two polypeptides of human insulin are linked together by




3. The coconut water from tender coconut represents




4. Which of the following statements is wrong for viroids?




5. Which of the following features is not present in the Phylum-Arthropoda?




6. Which of the following most appropriately describes haemophilia?




7. Emerson's enhancement effect and Red drop have been instrumental in the discovery of




8. In which of the following, all three are macronutrients?




9. Name the chronic respiratory disorder caused mainly by cigarette smoking




10. A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called




11. Mitochondria and chloroplast are
(a) semi-autonomous organelles.
(b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery.
Which one of the following options is correct?




12. In context of Amniocentesis, which of the following statement is incorrect?




13. In a chloroplast the highest number of protons are found in 2




14. Photosensitive compound in human eye is made up of




15. Spindle fibres attach on to




16. Which is the National Aquatic Animal of India?




17. Which of the following is required as inducer(s) for the expression of Lac operon?




18. Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other?




19. Microtubules are the constituents of




20. A complex of ribosomes attached to a single strand of RNA is known as




21. Fertilization in humans is practically feasible only if




22. Asthma may be attributed to




23. The Avena curvature is used for bioassay of




24. The standard petal of a papilionaceous corolla is also called




25. Tricarpellary, syncarpous gynoecium is found in flowers of




26. One of the major components of cell wall of most fungi is




27. Select the incorrect statement




28. In meiosis crossing over is initiated at




29. A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the F1 plants were selfed the resulting genotypes were in the ratio of




30. Which of the following is the most important cause of animals and plants being driven to extinction?




31. Which one of the following is a characteristic feature of cropland ecosystem?




32. Changes in GnRH pulse frequency in females is controlled by circulating levels of




33. Which of the following is not a feature of the plasmids?




34. Which of the following features is not present in Periplaneta americana?




35. In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self-cells, then it leads to




36. Match the terms in Column 1 with their description in Column II and choose the correct option:
Column IColumn II
(a) Dominance(i) Many genes govern a single character
(b) Codominance(ii) In a heterozygous organism only one allele expresses itself
(c) Pleiotropy(iii) In a heterozygous organism both alleles express themselves fully
(d) Polygenic inheritance(iv) A single gene influences many characters





37. Joint Forest Management Concept was introduced in India during




38. Pick out the correct statements:
(a) Haemophilia is a sex-linked recessive disease.
(b) Down's syndrome is due to aneuploidy.
(c) Phenylketonuria is an autosomal recessive gene disorder.
(d) Sickle cell anaemia is an X-linked recessive gene disorder.




39. Which one of the following statements is wrong?




40. Proximal end of the filament of stamen is attached to the




41. Which of the following approaches does not give the defined action of contraceptive?
(1)Barrier methodsprevent fertilization
(2)Intra uterine devicesincrease phagocytosis of sperms, suppress sperm motility and fertilizing capacity of sperms
(3)Hormonal contraceptivesPrevent/ retard entry of sperms, prevent ovulation and fertilization
(4)Vasectomyprevents spermatogenesis





42. The taq polymerase enzyme is obtained from




43. Identify the correct statement on ’inhibin'




44. Which part of the tobacco plant is infected by Meloidogyne incognita?




45. Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain




46. Which one of the following cell organelles is enclosed by a single membrane?




47. Lack of relaxation between successive stimuli in sustained muscle contraction is known as




48. Which of the following is not a stem modification?




49. Water soluble pigments found in plant cell vacuoles are




50. Select the correct statement




51. Which of the following is not required for any of the techniques of DNA fingerprinting available at present?




52. Which type of tissue correctly matches with its location?
TissueLocation
(1) Smooth muscleWall of intestine
(2) Areolar tissueTendons
(3) Transitional epitheliumTip of nose
(4) Cuboidal epitheliumLining of stomach





53. A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the following physiological groups would you assign this plant?




54. Which of the following structures is homologous to the wing of a bird?




55. Which of the following characteristic features always holds true for the corresponding group of animals?
(1) Cartilaginous endoskeletonChondrichthyes
(2) ViviparousMammalia
(3) Possess a mouth with an upper and a lower jawChordata
(4) 3-chambered heart with one incompletely divided ventricleReptilia





56. Which of the following statements is not true for cancer cells in relation to mutations?




57. The amino acid Tryptophan is the precursor for the synthesis of




58. Following are the two statements regarding the origin of life
(a) The earliest organisms that appeared on the earth were non-green and presumably anaerobes.
(b) The first autotrophic organisms were the chemoautotrophs that never released oxygen.
Of the above statements which one of the following options is correct?




59. Reduction in pH of blood will




60. Analogous structures are a result of




61. Which of the following is a restriction endonuclease?




62. The term ecosystem was coined by




63. Which one of the following statements is wrong?




64. In bryophytes and pteridophytes, transport of male gametes requires




65. When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt = rN(1-N/K)




66. Which one of the following statements is not true?




67. Which of the following would appear as the pioneer organisms on bare rocks?




68. Which one of the following is the starter codon?




69. Which one of the following characteristics is not shared by birds and mammals?




70. Nomenclature is governed by certain universal rules.
Which one of the following is contrary to the rules of nomenclature?




71. Blood pressure in the pulmonary artery is




72. Cotyledon of maize grain is called




73. In the stomach, gastric acid is secreted by the




74. Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers




75. Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the kingdom




76. Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of following options




77. In mammals, which blood vessel would normally carry largest amount of urea?




78. Seed formation without fertilization in flowering plants involves the process of




79. Which of the following is wrongly matched in the given table?
MicrobeProductApplication
(1) Trichoderma polysporumCyclosporin AImmunosuppressive drug
(2) Monascus purpureusStatinsLowering blood cholesterol
(3) StreptococcusStreptokinaseRemoval of clot from blood vessel
(4) Clostridium butylicumLipaseRemoval of oil stains





80. In a testcross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates




81. It is much easier for a small animal to run uphill than for a large animal, because




82. Which of the following is not a characteristic feature during mitosis in somatic cells?




83. Which of the following statements is not correct?




84. Specilised epidermal cells surrounding the guard cells are called




85. Which of the following guards the opning of hepatopancreatic duct into the duodenum?




86. Stems modified into flat green organs performing the functions of leaves are known as




87. The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the




88. A river with an inflow of domestic sewage rich in organic waste may result in




89. A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of cell plate and thus the cell is containing more number of chromosomes as compared to other dividing
cells. This would result in




90. A typical fat molecule is made up of




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