2. SECTION – I (Total Marks :100) 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. 01 Problem ICBN stands for International Code of Botanical Nomenclature International Congress of Biological Names Indian Code of Botanical Nomenclature Indian Congress of Biological Names
4. Problem 02 Which pair of the following belongs to Basidiomycetes? Puffballs and Claviceps Peziza and stink horns Morchella and mushrooms Birds nest fungi and puffballs
5. Problem 03 Biological organization starts with Cellular level Organismic level Atomic level Submicroscopic molecular level
6. Problem 04 Identify the odd combination of the habitat and the particular animal concerned. Sunderbans - Bengal tiger Periyar - elephant Rann of Kutch - wild ass Dachigam national park - snow leopard
7. Problem 05 If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence? Serum globulins Fibrinogen in the plasma Haemocytes Serum albumins
8. Problem 06 A common test to find the genotype of a hybrid is by Crossing of one F2 progeny with female parent Studying the sexual behavior of F1 progenies Crossing of one F1 progeny with male parent Crossing of one F2 progeny with male parent
9. Problem 07 The Okazaki fragments in DNA chain growth Polymerize in the 3'- to- 5' direction and forms replication fork Prove semi-conservative nature of DNA replication Polymerize in the 5'- to- 3' direction and explain 3'- to- 5' DNA replication Result in transcription
10. Problem 08 Which one of the following statement is correct? There is no evidence of the existence of gills during embryogenesis of mammals All plant and animal cells are totipotent Ontogeny repeats phylogeny Stem cells are specialized cells
11. Problem 09 In which one of the following the BOD ( Biochemical Oxygen Demand) of sewage (S), distillery effluent (DE), paper mill effluent (PE) and sugar mill effluent (SE) have been arranged in ascending order? SE < PE < S < DE PE < S < SE < DE S < DE < PE < SE SE < S < PE < DE
12. Problem 10 The concept of chemical evolution is based on Interaction of water, air and clay under intense heat Effect of solar radiation on chemicals Possible origin of life by combination of chemicals under suitable environmental conditions Crystallization of chemicals
13. Problem 11 Which one of the following is surrounded by a callose wall? Male gamete Egg Pollen grain Microspore mother cell
14. Problem 12 Probiotics are Cancer inducing microbes New kind of food allergens Live microbial food supplement Safe antibiotics
15. Problem 13 One of endangered species of Indian medicinal plants is that of Ocimum Garlic Nepenthes Podophyllum
16. Problem 14 What is true about Nereis, scorpion, cockroach and silver fish? They all possess dorsal heart None of them is aquatic They all belong to the same phylum They all have jointed paired appendages
17. Problem 15 The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for Interaction with the environment and progressive evolution Reproduction Growth and movement Responsiveness to touch
18. Problem 16 A person who is on a long hunger strike & is surviving only on water, will have Less amino acid in urine More glucose in blood Less urea in his urine More sodium in his urine
19. Problem 17 The length of DNA molecule greatly exceeds the dimensions of the nucleus in eukaryotic cells. How is this accommodated? Super coiling in nucleosomes DNase digestion Through elimination of repetitive DNA Deletion of non-essential genes
20. Problem 18 A sequential expression of a set of human genes occurs when a steroid molecule binds to the Messenger RNA DNA sequence Ribosome Transfer RNA
21. Problem 19 In a coal fired power plant electrostatic precipitators are installed to control emission of NOx SPM CO SO2
22. Problem 20 Select the wrong statement from the following Both chloroplasts & mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane Both chloroplasts & mitochondria contain DNA The chloroplasts are generally much larger than mitochondria Both chloroplast & mitochondria contain an inner & an outer membrane
23. Problem 21 Geometric representation of age structure is a characteristic of Population Landscape Ecosystem Biotic community
24. Problem 22 During transcription, RNA polymerase holoenzyme binds to a gene promoter & assumes a saddle-like structure. What is it’s DNA binding sequence AATT CACC TATA TTAA
25. Problem 23 A plant requires magnesium for Protein synthesis Chlorophyll synthesis Cell wall development Holding cells together
26. Problem 24 In the prothallus of a vascular cryptogram, the antherozoids & eggs mature at different times. As a result There is high degree of sterility One can conclude that the plant is apomictic Self fertilization is prevented There is no change in success rate of fertilization
27. Problem 25 Ergot of rye is caused by a species of Uncinula Ustilago Claviceps Phytophthora
28. Problem 26 Which one of the following is a slime mould? Physarum Thiobacillus Anabaena Rhizopus
29. Problem 27 The population of an insect species shows an explosive increase in numbers during rainy season followed by its disappearance at the end of the season. What does this show? The food plants mature & die at the end of the rainy season Its population growth curve is J-shaped The population of its predators increases enormously S-shaped or sigmoid growth of this insect
30. Problem 28 Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing micro-organism? Crotalaria juncea Cycas revolute Cicerarietinum Casuarinas equisetifolia
31. Problem 29 Which one of the following is being is utilized as a source of biodiesel in the Indian countryside? Beetroot Sugarcane Pongamia Euphorbia
32. Problem 30 For a critical study of secondary growth in plants, which one of the following pairs is suitable? Teak & pine Deodar & fern Wheat & maiden hair fern Sugarcane & sunflower
33. Problem 31 Which one of the following is a fat-soluble vitamin & its related deficiency disease? Retinol-xerophthlmia Cobalamine-beriberi Calciferol-pellagra Ascorbic acid-scurvy
34. Problem 32 Two cells A & B are contagious. Cell A has osmotic pressure 10 atm, turgor pressure 7 atm & diffusion pressure deficit 3 atm. Cell B has osmotic pressure 8 atm, turgor pressure 3 atm & diffusion pressure deficit 5 atm. The result will be No movement of water Equilibrium between the two Movement of water from cell A to B Movement of water from cell B to A
35. Problem 33 In which one of the following preparations are you likely to come across cell junctions most frequently? Thrombocytes Tendon Hyaline cartilage Ciliated epithelium
36. Problem 34 If you are asked to classify the various algae into distinct groups, which of the following characters you should choose? Nature if stored food materials in the cell Structural organization of the thallus Chemical composition of the cell wall Types of pigments present in the cell
37. Problem 35 About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen & Sulphur & magnesium Magnesium & sodium Calcium & phosphorus Phosphorus & sulphur
38. Problem 36 Which one of the following statement is correct? Both azotobacter & rhizobium fix atmosphere nitrogen in root nodules of plants Cyanobacteria such as anabaena & nostoc are important mobilizers of phosphates & for plant nutrition in soil At present it is not possible to grow maize without chemical fertilizers Extensive use of chemical fertilizers may lead to eutrophication of nearby water bodies
39. Problem 37 In the hexaploid wheat, the haploid (n) & basic (x) numbers of chromosomes are n=21 & x=21 n=21 & x=14 n=21 & x=7 n=7 & x=21
40. Problem 38 Passage cells are thin-walled cells found in Phloem elements that serve as entry points for substance for transport to other plant parts Testa of seeds to enable emergence of growing embryonic axis during seed germination Central region of style through which the pollen grows toward which the pollen tube grows towards the ovary Endodermis of roots facilitating rapid transport of water from cortex to pericycle
41. Problem 39 What is common between parrot, platypus & kangaroo? Toothless jaws Functional post-anal tail Oviparity Homoiothermy
42. Problem 40 Bowman’s glands are located in the Anterior pituitary Bowman’s glands are located in the Anterior pituitary Female reproductive system of cockroach Olfactory epithelium of our nose Proximal end of uriniferous tubules
43. Problem 41 Which one of the following statement pairs is wrongly matched? Yeast - ethanol Streptomycetes – antibiotic Coliforms – vinegar Methanogens – gobar gas
44. Problem 42 Which part of ovary in mammals acts as an endocrine gland after ovulation? Stroma Germinal epithelium Vitelline membrane Graffian follicle
45. Problem 43 Opening of floral buds into flowers, is a type of Autonomic movement of variation Paratonic movement of growth Automatic movement of growth Autonomic growth of locomotion
46. Problem 44 Which one of the following is a matching pair of a body feature & the animal possessing it? Ventral central nervous system-leech Pharyngeal gill slits absent in embryo-chameleon Ventral heart-scorpion Post anal tail-octopus
47. Problem 45 All enzymes of TCA cycle are located in the mitochondrial matrix except one which is located in inner mitochondrial membranes in eukaryotes & in cytosol in prokaryotes. This enzyme is Isocitratedehydrogenase Malatedehydrogenase Succinatedehydrogenase Lactate dehydrogenase
48. Problem 46 The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is Iron-sulphur protein Ferrodoxin Quinine Cytochromes
49. Problem 47 Differentiation of organs & tissues in a developing organism, is associated of genes Differential expression of genes Lethal mutations Deletion of genes Developmental mutations
50. Problem 48 Which one of the following statements about mycoplasma is wrong? They are pleomorphic They are sensitive to penicillin They cause disease in plant They are also called PPLO
51. Problem 49 Which one of the following pairs mismatched? Apisindica-honey Kenialacca-lac Bombyxmori-silk Pilaglobosa-pearl
52. Problem 50 A person is having problems with calcium & phosphorus metabolism in his body. Which one of the following glands may not be functioning properly? Parotid Pancreas Thyroid Parathyroid
53. Problem 51 A genetically engineered micro-organism used successfully in bio remediation of oil spills is a species of Trichoderma Xanthomonas Bacillus Pseudomonas
54. Problem 52 In the leaves of C plants in all the during in all the three of which one of the following sets? Zygnema, sparolegnia & hydrilla Fucus, marsilea, &caloptris Anthoceros, funaria & spirogyra In the mean & the median
55. Problem 53 pertaining to a certain character of a population are of the same value, the following is most likely to occur A bi-modal distribution A T-shaped curve A skewed curve A normal distribution
56. Problem 54 One gene one enzyme relationship was established for the first time in Salmonella typhimurium Escherichia coli Diplococcus pneumonia Neurosporacrassa
57. Problem 55 Two genes R & Y are located very close on the chromosomal linkage map of maize plant. When RRYY & rryy genotypes are hybridized, the F2 segregation will show Segregation in the expected 9:3:3:3:1 ratio Segregation in 3:1 ratio Higher number of the parental types Higher number of the recombinant types
58. Problem 56 In cloning of cattle a fertilized egg is taken out of the mother’s womb In the eight cells stage cells are separated & cultured until small embryos are formed which are implanted into the womb of other cows In the eight cell stage the individual cells separated under electrical field for further development in culture media From this upto eight identical twins can be produced The egg is divided 4 pairs of cells which are implanted into the womb of other cows
59. Problem 57 Ultrasound of how much frequency is beamed into human body for sonography? 15-30 MHz 1-15 MHz 45-70 MHz 30-45 MHz
60. Problem 58 Two plants can be conclusively said to belong to the same species if they Have more than 90 % similar genes Look similar & possess identical secondary metabolites Have same number of chromosomes Can produce freely with each other & form seeds
61. Problem 59 Inheritance of skin color in humans is an example of Point mutation Polygenic inheritance Co-dominance Chromosomal aberration
62. Problem 60 When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed Microevolution Co-evolution Convergent evolution Divergent evolution
63. Problem 61 Increased asthmatics attacks in certain seasons are related to Eating fruits preserved in tin containers Inhalation of seasonal pollen Low temperature Hot & humid environment
64. Problem 62 Among the human ancestors the brain size was more that 1000 CC in Homo erectus Ramapithecus Homo habils Homo neanderthalensis
65. Problem 63 Industrial melanism as observed in peppered moth proves that The melanic form of the moth has selective advantage over lighter form in industrial area The lighter-form moth has no selective advantage either in polluted industrial area or non-polluted area Melanism is a pollution-generated feature The true black melanic forms arise by a recurring random mutation
66. Problem 64 A high density of elephant population in an area can result in Intra specific competition Inter specific competition Predation on one another Mutualism
67. Problem 65 A drop of each of the following is placed separately on four sides. Which of them will not coagulate? Blood serum Sample from the thoracic duct of lymphatic system Whole blood from pulmonary vein Blood plasma
68. Problem 66 Which one of the following ecosystem types has the highest annual net primary productivity? Tropical deciduous forest Temperate evergreen forest Temperate deciduous forest Tropical rain forest
69. Problem 67 In human body, which one of the following is anatomically correct? Collar bones-3 pairs Salivary glands-1 pair Cranial nerves-10 pairs Floating ribs-2 pairs
70. Problem 68 Telomere repetitive DNA sequence control the function of eukaryotic chromosomes because they Are RNA transcription initiator Help chromosome pairing Prevent chromosome loss Act as replicoms
71. Problem 69 Spore dissemination in some liverworts is aided by Indusium Calyptra Perisome teeth Elaters
72. Problem 70 Which one of the following elements is not an essential micronutrient for plant growth? Zn Cu Ca Mn
73. Problem 71 The overall goal of glycolysis, Krebs cycle & the electron transport system is the formation of ATP in one large oxidation reaction Sugars Nucleic acids ATP in small stepwise units
74. Problem 72 Adaptive radiation refers to Evolution of different species from a common ancestor Migration of members of a species to different geographical areas Power of adaptation in an individual to a variety of environments Adaptations due to geographical isolation
75. Problem 73 Which one of the following pairs, is not correctly matched? Gibberlic acid-leaf fall Cytokinin- cell division IAA-cell wall elongation Abscissic acid-stomastal closure
76. Problem 74 Select the correct statement from the following? Fitness is the end result of the ability to adapt & gets selected by nature All mammals except whales & camels have seen cervical vertebrae Mutations are random & directional Darwinian variations are small & directionless
77. Problem 75 Male gametes in angiosperms are formed by the division of Generative cell Vegetative cell Microspore mother cell Microspore
78. Problem 76 In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow & green seeded plants would you except in F1 GENERATION? 9:1 1:3 3:1 50:50
79. Problem 77 Which one of the following mammalian cells is not capable of metabolizing glucose to carbon dioxide aerobically? Unstraited muscle cells Liver cells Red blood cells White blood cells
80. Problem 78 A human male produces sperms with the genotypes AB, Ab, aB & ab pertaining to two diallelic characters in equal proportions. What is the corresponding genotype of this person? AaBB AABb AABB AaBb
81. Problem 79 What is common to whale, seal & shark? Thick subcutaneous fat Converge Homoiothermy Seasonal migration
82. Problem 80 One of the important consequences of geographical isolation is Preventing speciation Speciation through reproductive isolation Random creation of new species No change in the isolated fauna
83. Problem 81 Lysozyme that is present in perspiration, saliva & tears, destroys Certain types of bacteria All viruses Most virus-infected cells Certain fungi
84. Problem 82 In the human female, menstruation can be deferred by the administration of Combination of FSH & LH Combination of estrogen & progesterone FSH only LH only
85. Problem 83 Which one of the following is not a constituent of cell membrane? Glycolipids Proline Phospholipids Cholesterol
86. Problem 84 Compared to a bull a bullock is docile because of Higher levels of cortisone Lower levels of blood testosterone Lower levels of adrenaline/noradrenaline in its blood Higher levels of thyroxine
87. Problem 85 During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric change First positive, then negative & continue to be negative First negative, then positive & continue to be positive First positive, then negative & again back to positive First negative, then positive & again back to negative
88. Problem 86 Which one of the following pairs of organisms are exotic species introduced in India? Lantana camara, water hyacinth Water hyacinth, prosopis cineraria Nile perch, ficusreligiosa Ficusreligiosa, lantana camara
89. Problem 87 In gymnosperms, the pollen chamber represents A cavity in the ovule in which pollen grains are stored after pollination An opening in the mega gametophyte through which the pollen tube approaches the egg The microsporangium in which pollen grains develop A cell in the pollen grain in which the sperms are formed
90. Problem 88 Molecular basis of organ differentiation depends on the modulation in transcription by Ribosome Transcription factor Anticodon RNA polymerase
91. Problem 89 Which of the following is an example of negative feedback loop in humans? Secretion of tears after falling of sand particles into the eye Salivation of mouth at the sight of delicious food Secretion of sweat glands & constriction of skin blood vessels when it is too hot Constriction of skin blood vessels & contraction of skeletal muscles when it is too cold
92. Problem 90 The two polynucleotide chains in DNA are Discontinuous Antiparallel Semi conservative Parallel
93. Problem 91 Which one of the following pairs is correctly matched? Animal’s morphological features Crocodile - 4-chambered heart Sea urchin - parapodia Obelia - metagenesis Lemur - thecodont 2,3,4 1,4 1,2 1,3,4
94. Problem 92 The two polynucleotide chains in DNA are Discontinuous Antiparallel Semi conservative Parallel
95. Problem 93 Which one of the following pairs of structures distinguishes a nerve cell from other types of cell? Vacuoles & fibres Flagellum & medullary sheath Nucleus & mitochondria Perikaryon & dendrites
96. Problem 94 In maize, hybrid vigor is exploited by Crossing of two inbred parental lines Harvesting seeds from the most productive plants Inducing mutations Bombarding the seeds with DNA
97. Problem 95 One of the important consequences of geographical isolation is Preventing speciation Speciation through reproductive isolation Random creation of new species No change in the isolated fauna
98. Problem 96 The wavelength of light absorbed by Pr form of phytochromes is 680 nm 720 nm 620 nm 640 nm
99. Problem 97 Which one of the following is not a bioindicator of water pollution Blood-worms Stone flies Sewage fungus Sludge-worms
100. Problem 98 Lysozyme that is present in perspiration, saliva & tears, destroys Certain types of bacteria All viruses Most virus-infected cells Certain fungi
101. Problem 99 Feeling the tremors of an earth quake a scared resident of seventh floor of a multistoried building starts climbing down the stairs rapidly. Which hormone initiated this action? Adrenaline Glucagons Gastrin Thyroxine
102. Problem 100 ‘Foolish seedling’ disease of rice led to the discovery of ABA 2, 4-D IAA GA
