WBJEE - 2010 - Biology
1. First Genetically modified plant commercially released in India is :
(A) Golden rice (B) Slow ripening tomato (C) Bt-brinjal (D) Bt-Cotton
2. Quiescent centre is found in plants at :
(A) Root tip (B) Cambium (C) Shoot tip (D) Leaf tip
3. In a DNA molecule distance between two bases is
(A) 2 nm/20Å (B) 0.2 nm/2Å (C) 3.4 nm / 34 Å (D) 0.34 nm/3.4 Å
4. Exine of pollen grain is made up of
(A) Pectocellulose (B) Ligno cellulose (C) Sporopollenin (D) Pollen Kit
5. When the cell is fully turgid, its
(A) DPD = OP (B) DPD = Zero (C) WP = TP (D) OP = Zero
6. Which one is true for ATP ?
(A) ATP is prosthetic part of an enzyme (B) ATP is an enzyme
(C) ATP is organic ions of enzyme (D) ATP is a Co-enzyme
7. Root cells of Wheat has 2n = 42 chromosomes. Which one of the following is the basic chromosomenumber of Wheat ?
(A) 42 (B) 21 (C) 7 (D) 14
8. Purines possess nitrogen at
(A) 1, 2, 4 and 6 position (B) 1, 3, 5 and 7 position (C) 1, 3, 7 and 9 position (D) 1, 2, 6 and 8 position
9. Thylakoids occur inside
(A) Mitochondria (B) Chloroplast (C) Golgi apparatus (D) Endoplasmic reticulum
10. Micropropagation is a technique
(A) for production of true to type plants (B) for production of haploid plant
(C) for production of Somatic hybrids (D) for production of Soma clonal plants
11. Test cross is a cross between
(A) Hybrid × Dominant parent (B) Hybrid × Recessive parent
(C) Hybrid × Hybrid parent (D) Two distantly related species
12. Mitochondria are semi autonomous as they possess
(A) DNA (B) DNA + RNA (C) DNA + RNA Ribosomes (D) Protein
13. Chitin is a
(A) Polysaccharide (B) Nitrogenous polysaccharide (C) Lipo Protein (D) Protein
14. Balbiani rings are the sites of
(A) DNA replication (B) RNA and protein synthesis (C) Synthesis of lipids (D) Synthesis of polysaccharides
15. Which of the cell organelle lacks membrane ?
(A) Mesosome (B) Mitochondria (C) Ribosome (D) Liposome
16. Interfacicular cambium is a
(A) Primary meristematic tissue (B) Primordial meristem
(C) Type of Protoderm (D) Secondary meristematic tissue
17. Cotton fibre is basically a type of
(A) Trichome (B) Scale (C) Dried seed coat (D) Non glandular hair
18. Chloroplast dimorphism is a characteristic feature of
(A) Plants with Calvin cycle (B) C4-Plants (C) All plants (D) Only in algae
19. In which type of reactions related to plant photosynthesis peroxisomes are involved ?
(A) Glycolate cycle (B) Calvin cycle (C) Bacterial photosynthesis (D) Glyoxylate cycle
20. The term Alpha diversity refers to
(A) Genetic diversity (B) Community & ecosystem diversity
(C) Species diversity (D) Diversity among the plants
21. How many variable segments are present in the basic structure of antibody molecules ?
(A) One (B) Two (C) Three (D) Four
22. Which one is diaminodicarboxylic amino acid ?
(A) Cystine (B) Lysine (C) Cysteine (D) Aspartic Acid
23. Which one is the cofactor of carbonic anhydrase ?
(A) Fe (B) Zn (C) Cu (D) Mg
24. Vitamin – D is produced in human body in –
(A) Muscles (B) Nerves (C) Skin (D) Bone-marrow
25. Bacteriophages kill
(A) Fungi (B) Parasites (C) Bacteria (D) Viruses
26. What is mitoplast ?
(A) Membraneless mitochondria (B) Another name of mitochondria
(C) Mitochondria without outer membrane (D) Mitochondria without inner membrane
27. Transposons are –
(A) House - keeping genes (B) Jumping genes (C) Transporting genes (D) Stationary genes
28. Which of the following is not a conjugated protein ?
(A) Peptone (B) Phosphoprotein (C) Lipoprotein (D) Chromoprotein
29. The outer covering of cartilage is called
(A) Peritonium (B) Periosteum (C) Endosteum (D) Perichondrium
30. The blood does not clot inside the body because of :
(A) Oxygenation of blood (B) Movement of blood (C) Heparin in blood (D) Absence of fibrinogen in blood
31. Red cell count is carried out by –
(A) Haemocytometer (B) Haemoglobinometer (C) Sphygmomanometer (D) Electrocardiogram
32. Rh factor can produce disease
(A) AIDS (B) Turner’s Syndrome (C) Erythroblastosis foetalis (D) Sickle - cell anaemia
33. Name the hormone that stimulates the secretion of gastric juice
(A) Renin (B) Enterokinase (C) Enterogastrone (D) Gastrin
34. Bile salts act as activator of which enzyme ?
(A) Pepsinogen (B) Trypsinogen (C) Lipase (D) Pancreatic amylase
35. Heparin is produced by –
(A) Kidney Cells (B) Blood Cells (C) Bone marrow (D) Liver cell
36. Which of the following cells produce HCl ?
(A) β-Cell (B) α-Cell (C) Oxyntic Cell (D) Chief Cell
37. Which ribs show “bucket - handle’ type of movement ?
(A) Rib No. 1 – 2 (B) Rib No. 3 – 5 (C) Rib No. 6 – 10 (D) Rib No. 11 – 12
38. In which of the following subjects the dead space is highest ?
(A) Old man (B) Old woman (C) Young man (D) Young woman
39. Which one has the thickest wall ?
(A) Right auricle (B) Right Ventricle (C) Left auricle (D) Left ventricle
40. The cardiac cycle in normal subject is about
(A) 0.5 second (B) 0.8 second (C) 1.0 second (D) 1.2 second
41. What is glycosuria ?
(A) Low amount of sugar in urine (B) Low amount of fat in urine
(C) Average amount of carbohydrate in urine (D) High amount of sugar in urine
42. Volume of urine is regulated by –
(A) Aldosterone (B) Aldosterone and testosterone (C) ADH (D) Aldosterone and ADH
43. Skin is an acessory organ or respiration in –
(A) Human (B) Frogs (C) Rabbit (D) Lizard
44. Name the condition when the concentration of Ketone body increases in urine
(A) Acromegaly (B) Diabetes mellitus (C) Diabetes insipidus (D) Cushing’s disease
45. Hormone responsible for the secretion of milk after parturition
(A) ICSH (B) Prolactin (C) ACTH (D) LH
46. Endemic goitre is a state of
(A) Increased thyroid function (B) Normal thyroid function
(C) Decreased thyroid function (D) Moderate thyroid function
47. Islets of Langerhans are found in
(A) Anterior Pituitary (B) Kidney Cortex (C) Spleen (D) Endocrine pancreas
48. Which of the following is the function of Adrenaline ?
(A) Helps in gastric juice secretion (B) Increases heart rate and blood pressure
(C) Increases blood calcium (D) Helps in milk secretion
49. Which of the following is not related to the autonomic nervous system ?
(A) Peristalsis (B) Digestion (C) Excretion (D) Memory and learning
50. Comprehension of spoken and written words take place in the region of
(A) Association Area (B) Motor Area (C) Wernicke’s Area (D) Broca’s Area
51. Which one of the following cranial nerves is carrying the nerve fibres originating from the Edinger-Westphal nucleus ?
(A) Oculomotor (B) Trochlear (C) Abducens (D) Vagus
52. How many laminae are present in the grey matter of spinal cord ?
(A) Four (B) Six (C) Eight (D) Ten
53. Colour blindness is due to defect in
(A) Cones (B) Rods (C) Rods and cones (D) Rhodopsin
54. MRI is not allowed in the following conditions except one. Identify the exception.
(A) Presence of pacemaker in the body (B) Pregnant women
(C) Person suffering from stroke (D) Presence of metallic plate in the body for treatment of broken bones
55. Which of the following diseases is related to cadmium pollution ?
(A) Minamata (B) Pneumoconiosis (C) Anaemia (D) Itai-itai
56. Percentage composition of Fibroin and Sericin in silk is
(A) 50 : 40 (B) 80 : 20 (C) 30 : 70 (D) 40 : 60
57. Which one of the following is used as biological insecticide ?
(A) Tiger beetle (B) Caterpillar (C) Silkmoth (D) Mazra Poka
58. Which one of the following diseases is spread by Housefly ?
(A) Dengue fever (B) Encephalitis (C) Filariasis (D) Typhoid
59. Water-Vascular’ system is found in
(A) Sea-anemone (B) Sea-pen (C) Sea-cucumber (D) Sea-horse
60. Nutrient enrichment of a lake will cause
(A) Eutrophication (B) Stratification (C) Biomagnification (D) Bioaccumulation
61. Lichens are decribed as indicator of
(A) Air pollution (B) Water pollution (C) Soil pollution (D) Agriculture productivity
62. Most abundant mineral of animal body is
(A) Iron (B) Sodium (C) Potassium (D) Calcium
63. Retrogressive metamorphosis occurs in
(A) Hemichordata (B) Cephalochordata (C) Urochordata (D) Vertebrata
64. ‘Organ of Jacobson’ helps in
(A) Touch (B) Vision (C) Smell (D) Hear
65. Cysticercus stage is formed in
(A) Taenia (B) Plasmodium (C) Leishmania (D) Wuchereria
66. Which one of the following viruses contains both DNA and RNA ?
(A) Cyanophage (B) Herpes Virus (C) Leuko Virus (D) Polio Virus
67. The hormone responsible for “Fight and Flight” response is
(A) Adrenalin (B) Thyroxine (C) ADH (D) Oxytocin
68. Tuberculosis is caused by :
(A) Mycobacterium sp. (B) Aspergillus sp. (C) Clostridium sp. (D) Vibrio sp.
69. Which of the following is a catadromous fish ?
(A) Hilsa sp. (B) Mystus sp. (C) Anguilla sp. (D) Channa sp.
70. Which animal of the following belongs to class crustacea ?
(A) Cockroach (B) Cyclops (C) Grasshopper (D) Mosquito
71. Radula is found in :
(A) Pila sp. (B) Chiton sp. (C) Lamellidens sp. (D) Pinctada sp.
72. The scientific name of Java man is
(A) Homo habilis (B) Homosapiens neandarthalensis (C) Homo erectus erectus (D) Australopithecus boisei
73. Which phase comes in between the G 1 and G 2 phases of cell cycle ?
(A) M-phase (B) Go-phase (C) S-phase (D) Interphase
74. How many effective codons are there for the synthesis of twenty amino acids ?
(A) 64 (B) 32 (C) 60 (D) 61
75. Which of the following condition is called monosomic ?
(A) 2n + 1 (B) 2n + 2 (C) n + 1 (D) 2n – 1
76. Chromosome is made up of
(A) DNA + pectin (B) RNA + DNA (C) DNA + Histone (D) Only histone
77. Cell division can not be stopped in which phase of the cell cycle ?
(A) G 1-phase (B) G 2-phase (C) S-phase (D) Prophase
78. Which of the following is structural subunit of DNA ?
(A) Protein (B) Carbohydrate (C) RNA (D) Nucleotides
79. Cell theory is not applicable for
(A) Bacteria (B) Fungus (C) Algae (D) Virus
80. The difference between systolic and diastolic pressure in human is
(A) 120 mm Hg (B) 80 mm Hg (C) 40 mm Hg (D) 200 mm Hg
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