Biology Question Paper-07-05-2019
| 1. | The site of translation during protein synthesis in eukaryotes and prokaryotes is _______ |
| | (1) | Mitochondria |
| | (2) | Ribosomes |
| | (3) | Smooth Endoplasmic reticulum |
| | (4) | Nucleus |
CORRECT ANSWER
(2) Ribosomes
| 2. | Reduction in blood supply to the cardiac muscles due to narrowed and hardened coronary arteries causes primarily _________ |
| | (1) | Angina Pectoris |
| | (2) | Hypotension |
| | (3) | Heart failure |
| | (4) | Bradycardia |
CORRECT ANSWER
(1) Angina Pectoris
| 3. | Select the correct set of names for parts a, b, c, d |
|  |
| | (1) | a-Micropyle , b-Raphe, C-Secondary nucleus, d-Nucellus |
| | (2) | a-Chalaza, b-Hilum , c- Antipodal, d- Egg apparatus |
| | (3) | a- Integument, b-Funicle , c-Egg apparatus, d-Embryo sac |
| | (4) | a-Nucellus, b-Placenta, c-Synergid, d-Chalaza |
CORRECT ANSWER
(1) a-Micropyle , b-Raphe, C-Secondary nucleus, d-Nucellus
| 4. | The allele which is unable to express itself phenotypically in the presence of dominant allele is called as ______ allele ? |
| | (1) | multiple |
| | (2) | dominant |
| | (3) | recessive |
| | (4) | codominant |
CORRECT ANSWER
(3) recessive
| 5. | In Cockroach, legs show presence of claws and adhesive pads for running, which is __________. |
| | (1) | Cursorial adaptation |
| | (2) | Arboreal adaptation |
| | (3) | Fossorial adaptation |
| | (4) | Desert adaptation |
CORRECT ANSWER
(1) Cursorial adaptation
| 6. | `C_n H_(2n) O_n` is a general formula of |
| | (1) | Simple carbohydrates |
| | (2) | Simple protein |
| | (3) | Conjugated protein |
| | (4) | Complex carbohydrates |
CORRECT ANSWER
(1) Simple carbohydrates
| 7. | Emphysema can be treated using _____ produced by using transgenic animals . |
| | (1) | `prop`- 1- antitrypsin |
| | (2) | Tetracycline |
| | (3) | Rimantadine |
| | (4) | Diethylecarbamacine |
CORRECT ANSWER
(1) `prop`- 1- antitrypsin
| 8. | The plasma proteins include all of the following EXCEPT _____ . |
| | (1) | Serum albumin |
| | (2) | Fibrinogen |
| | (3) | Histamine |
| | (4) | Prothrombin |
CORRECT ANSWER
(3) Histamine
| 9. | Identity the FALSE statement |
| | (1) | Zygote, produced after fertilization undergoes resting phase in cryptogams. |
| | (2) | In angiosperms, endosperm is triploid. |
| | (3) | In gymnosperms, endosperm is haploid. |
| | (4) | Apomixis is controlled by apomictic genes. |
CORRECT ANSWER
(1) Zygote, produced after fertilization undergoes resting phase in cryptogams.
| 10. | Bitumen’s water repellant properties can be enhanced by ____ for laying roads |
| | (1) | leaching |
| | (2) | humification |
| | (3) | mineralization |
| | (4) | polyblend |
CORRECT ANSWER
(4) polyblend
| 11. | Hypersecretion of GH in adults leads to _____ |
| | (1) | Cushing’s disease |
| | (2) | Myxoedema |
| | (3) | Acromegaly |
| | (4) | Addison’s disease |
CORRECT ANSWER
(3) Acromegaly
| 12. | Which one of the following is NOT a club fungi ? |
| | (1) | Neurospora |
| | (2) | Puccinia |
| | (3) | Ustilago |
| | (4) | Agaricus |
CORRECT ANSWER
(1) Neurospora
| 13. | In Calvin cycle, the percentage (%) of PG AL molecules used for synthesis of glucose through reverse glycolysis is approximately _____ |
| | (1) | 8 |
| | (2) | 20 |
| | (3) | 17 |
| | (4) | 100 |
CORRECT ANSWER
(3) 17
| 14. | Viviparous plants do NOT show _______ . |
| | (1) | seed dormancy |
| | (2) | seed germination |
| | (3) | fruit formation |
| | (4) | viable embryo |
CORRECT ANSWER
(1) seed dormancy
| 15. | Match the following and select correct option from given codes |
| | | Column I | | Column II |
| | i) | Genetic drift | p) | Sum total of genes of all individuals in a population |
| | ii) | Gene flow | q) | Alteration in allele frequency by pure chance in a population |
| | iii) | Gene frequency | r) | Transfer of genes between genetically differing populations |
| | iv) | Gene pool | s) | Proportion of an allele in the gene pool as compared to other |
| |
| | (1) | i-s, ii-q, iii-p, iv-r |
| | (2) | i-q, ii-r, iii-s, iv-p |
| | (3) | i-p, ii-r, iii-q, iv-s |
| | (4) | i-r, ii-s, iii-q, iv-p |
| |
CORRECT ANSWER
(2) i-q, ii-r, iii-s, iv-p
| 16. | In Krebs cycle, what is formed after decarboxylation and oxidation of α Keto Glutarate ? |
| | (1) | Fumaric acid |
| | (2) | Succinyl Co A |
| | (3) | Malic acid |
| | (4) | Succinic acid |
CORRECT ANSWER
(2) Succinyl Co A
| 17. | ----------are autonomously replicating double stranded extra-chromosomal circular DNA present in bacteria. |
| | (1) | Viroids |
| | (2) | Transposons |
| | (3) | Plasmids |
| | (4) | Bacteriophages |
CORRECT ANSWER
(3) Plasmids
| 18. | Role of birth control pills is to________ |
| | (1) | Kill sperms |
| | (2) | Change mating behaviour |
| | (3) | Check ovulation |
| | (4) | Prevent implantation |
CORRECT ANSWER
(3) Check ovulation
| 19. | Dilation stage of parturition includes one of the following events |
| | (1) | Ligaments of pelvic girdle are relaxed due to relaxin. |
| | (2) | Amniotic fluid lubricates vagina. |
| | (3) | Uterine contractions become powerful. |
| | (4) | Placenta, umbilical cord and foetal membranes are expelled. |
CORRECT ANSWER
(2) Amniotic fluid lubricates vagina.
| 20. | Toadstools are examples of |
| | (1) | algae |
| | (2) | mushroom |
| | (3) | bacteria |
| | (4) | yeast |
CORRECT ANSWER
(2) mushroom
| 21. | Three ear ossicles Malleus, Incus and Stapes are present in the __________ |
| | (1) | External ear |
| | (2) | Middle ear |
| | (3) | Bony Labyrinth |
| | (4) | Internal ear |
CORRECT ANSWER
(2) Middle ear
| 22. | The organ with two networks of arterial capillaries is _________ |
| | (1) | Liver |
| | (2) | Stomach |
| | (3) | Adrenal gland |
| | (4) | Kidney |
CORRECT ANSWER
(4) Kidney
| 23. | Urey and Miller’s spark discharge apparatus was experimental evidence for theory of ______ . |
| | (1) | Biogenesis |
| | (2) | Chemical evolution |
| | (3) | Abiogenesis |
| | (4) | Panspermia |
CORRECT ANSWER
(2) Chemical evolution
| 24. | _________ in the cell are known as protein factories. |
| | (1) | Lysosomes |
| | (2) | Golgi apparatus |
| | (3) | Ribosomes |
| | (4) | Mitochondria |
CORRECT ANSWER
(3) Ribosomes
| 25. | “ Species Plantarum” is a book written by __________ |
| | (1) | Linneaeus |
| | (2) | John Ray |
| | (3) | Theophrastus |
| | (4) | de Candolle |
CORRECT ANSWER
(1) Linneaeus
| 26. | Hybrid maize variety developed by selective breeding shows rich quantity of _________ amino acids. |
| | (1) | Lysine & methionine |
| | (2) | Valine & serine |
| | (3) | Serine & tryptophan |
| | (4) | Lysine & tryptophan |
CORRECT ANSWER
(4) Lysine & tryptophan
| 27. | In r-DNA technology _______ is the best vector used for insects |
| | (1) | Lambda phage |
| | (2) | Ti plasmid |
| | (3) | Yeast Artificial Chromosome (YAC ) |
| | (4) | Baculovirus |
CORRECT ANSWER
(4) Baculovirus
| 28. | Select correct explanation about fraternal twins |
| | (1) | They have same genetic makeup |
| | (2) | They are produced from a single zygote |
| | (3) | They are also called dizygotic twins |
| | (4) | They always have same sex |
CORRECT ANSWER
(3) They are also called dizygotic twins
| 29. | Which of the following is a pioneer of xerarch succession? |
| | (1) | Lichens |
| | (2) | Grass |
| | (3) | Algae |
| | (4) | Moss |
CORRECT ANSWER
(1) Lichens
| 30. | Which of the following is NOT the function of microfilament ? |
| | (1) | Contraction |
| | (2) | Cytokinesis |
| | (3) | Gliding |
| | (4) | Absorption |
CORRECT ANSWER
(4) Absorption
| 31. | The study of quantitative and statistical aspects of human population is called ____ |
| | (1) | Age structure |
| | (2) | Demography |
| | (3) | Density of population |
| | (4) | Census |
CORRECT ANSWER
(2) Demography
| 32. | In chloroplast, the pigments which give protection to Chl. a from photo-oxidation are - |
| | (1) | Anthocyanins |
| | (2) | Phycoerythrins |
| | (3) | Carotenoids |
| | (4) | Phycobilins |
CORRECT ANSWER
(3) Carotenoids
| 33. | By which mode, HIV is NOT transmitted ? |
| | (1) | Through sexual contact |
| | (2) | Through blood transfusion |
| | (3) | By mosquito bite |
| | (4) | Transplacental |
CORRECT ANSWER
(3) By mosquito bite
| 34. | Nissl’s granules are found in _______ |
| | (1) | Neuroglia cell |
| | (2) | Goblet cell |
| | (3) | Nerve cell |
| | (4) | Mast cell |
CORRECT ANSWER
(3) Nerve cell
| 35. | Alleles are _____ |
| | (1) | Pairs of sex chromosomes |
| | (2) | Pairs of autosomes |
| | (3) | Genes of different character |
| | (4) | Alternate forms of a gene |
CORRECT ANSWER
(4) Alternate forms of a gene
| 36. | Select the correct statement. |
| | (1) | Diameter of the afferent arteriole is less than that of the efferent arteriole. |
| | (2) | Diameter of the afferent arteriole is more than that of renal vein. |
| | (3) | Diameter of the afferent arteriole is equal to that of efferent arteriole. |
| | (4) | Diameter of the afferent arteriole is more than that of the efferent arteriole. |
CORRECT ANSWER
(4) Diameter of the afferent arteriole is more than that of the efferent arteriole.
| 37. | Herbicide, Phytophthora palmivora is a |
| | (1) | bacterium |
| | (2) | lichen |
| | (3) | fungus |
| | (4) | virus |
CORRECT ANSWER
(3) fungus
| 38. | Wobble hypothesis in genetic code is due to |
| | (1) | Non-ambiguity |
| | (2) | Polarity |
| | (3) | Purine Pyrimidine equality |
| | (4) | Degeneracy |
CORRECT ANSWER
(4) Degeneracy
| 39. | Budding is a type of __________ in angiosperms |
| | (1) | micropropagation |
| | (2) | amphimixis |
| | (3) | natural method of vegetative propagation |
| | (4) | grafting |
CORRECT ANSWER
(4) grafting
| 40. | Identify the process, in which from aerial parts of plants water is lost in the form of vapour. |
| | (1) | Osmosis |
| | (2) | Photosynthesis |
| | (3) | Respiration |
| | (4) | Transpiration |
CORRECT ANSWER
(4) Transpiration
| 41. | In anaerobic breakdown of 20 molecules of glucose the number of `CO_2` molecules evolved will be _______ |
| | (1) | 20 |
| | (2) | 10 |
| | (3) | 40 |
| | (4) | 60 |
CORRECT ANSWER
(3) 40
| 42. | The adjacent Haversian systems are interconnected by __________ |
| | (1) | Volkmann’s canal |
| | (2) | Neural canal |
| | (3) | Central canal |
| | (4) | Inguinal canal |
CORRECT ANSWER
(1) Volkmann’s canal
| 43. | Cellular respiration takes place mainly in ________ . |
| | (1) | endoplasmic reticulum |
| | (2) | centriole |
| | (3) | chloroplast |
| | (4) | mitochondrion |
CORRECT ANSWER
(4) mitochondrion
| 44. | Following are examples of complete sex linkage EXCEPT_____ . |
| | (1) | Myopia |
| | (2) | Retinitis pigmentosa |
| | (3) | Red green colour blindness |
| | (4) | Haemophilia |
CORRECT ANSWER
(2) Retinitis pigmentosa
| 45. | Acetyl CoA in Krebs cycle reacts with _______ acid |
| | (1) | Citric |
| | (2) | Oxaloacetic |
| | (3) | Fumaric |
| | (4) | Succinic |
CORRECT ANSWER
(2) Oxaloacetic
| 46. | Select the odd one out |
| | (1) | Interaction between algae and fungus in lichen |
| | (2) | Interaction between land plants and mycorrhiza |
| | (3) | Interaction between Echeneis and shark fish |
| | (4) | Interaction between ungulates and bacteria in its intestine |
CORRECT ANSWER
(3) Interaction between Echeneis and shark fish
| 47. | Agar-agar used in Plant Tissue Culture is obtained from ______ |
| | (1) | Brown algae |
| | (2) | Red algae |
| | (3) | Golden algae |
| | (4) | Green algae |
CORRECT ANSWER
(2) Red algae
| 48. | In which of the following family, apomictic seeds are produced in some species ? |
| | (1) | Crassulaceae |
| | (2) | Asteraceae |
| | (3) | Malvaceae |
| | (4) | Liliaceae |
CORRECT ANSWER
(2) Asteraceae
| 49. | The structure or organ originating from mesoderm is _____ . |
| | (1) | Lining of buccal cavity |
| | (2) | Heart |
| | (3) | Enamel of teeth |
| | (4) | Brain |
CORRECT ANSWER
(2) Heart
| 50. | Which of the following enzyme is required for conversion of Fructose 6 phosphate → fructose 1,6 diphosphate ? |
| | (1) | Phosphoglyceromutase |
| | (2) | Aldolase |
| | (3) | Enolase + Mg++ |
| | (4) | Phosphofructo kinase + Mg++ |
CORRECT ANSWER
(4) Phosphofructo kinase + Mg++
| 51. | Ferredoxin is involved in ________ |
| | (1) | Cyclic and noncyclic photophosphorylation |
| | (2) | Cyclic photophosphorylation only |
| | (3) | `C_3` - Pathway |
| | (4) | `C_4` – Pathway |
CORRECT ANSWER
(1) Cyclic and noncyclic photophosphorylation
| 52. | ____________ is a mixed nerve. |
| | (1) | Hypoglossal |
| | (2) | Trigeminal |
| | (3) | Optic |
| | (4) | Olfactory |
CORRECT ANSWER
(2) Trigeminal
| 53. | Identity X, Y & Z in given table |
| | Receptor | Location | Sensitive for |
| | X | Skin | Temperature |
| | Chemoreceptor | Y | Taste |
| | Proprioreceptor | Muscle | Z |
| |
| | (1) | X - Mechanoreceptor, Y - Tongue, Z - Pain |
| | (2) | X - Mechanoreceptor, Y - Eye, Z - Thirst |
| | (3) | X - Thermoreceptor, Y - Tongue, Z - Pain |
| | (4) | X- Thermoreceptor, Y- Eye, Z- Thirst |
| |
CORRECT ANSWER
(3) X - Thermoreceptor, Y - Tongue, Z - Pain
| 54. | The type of muscle fibres responsible for movement of limbs is _____. |
| | (1) | Striated and voluntary |
| | (2) | Smooth and involuntary |
| | (3) | Striated and involuntary |
| | (4) | Unstriated and involuntary |
CORRECT ANSWER
(1) Striated and voluntary
| 55. | Match the following & choose correct option |
| | | Column I | | Column II |
| | a) | Versatile anthers | (1) | Hydrophily |
| | b) | Long, sticky stigma | (2) | Ornithophily |
| | c) | Spiny pollengrains | (3) | Entomophily |
| |
| | (1) | a-3, b-1, c-4, d-2 |
| | (2) | a-4, b-2, c-3, d-1 |
| | (3) | a-2, b-3, c-1, d-4 |
| | (4) | a-1, b-4, c-2, d-3 |
| |
CORRECT ANSWER
Note: For this question, discrepancy is found in question/answer. Full Marks is being awarded to all candidates.
| 56. | DNA finger printing technique is useful in all of the following EXCEPT |
| | (1) | Insurance claim settlements |
| | (2) | Disputed parentage |
| | (3) | Origin of mutations |
| | (4) | Study of phylogeny |
CORRECT ANSWER
(3) Origin of mutations
| 57. | In the enzyme Eco R I, R indicates the _________ of bacteria from which they are isolated. |
| | (1) | order of discovery |
| | (2) | species |
| | (3) | strain |
| | (4) | genus |
CORRECT ANSWER
(3) strain
| 58. | During proliferative phase, level of ___ increases. |
| | (1) | LTH |
| | (2) | FSH |
| | (3) | LH |
| | (4) | ADH |
CORRECT ANSWER
(2) FSH
| 59. | Cranial capacity of Homo sapiens fossilis was _______ |
| | (1) | 1200 cc |
| | (2) | 1600 cc |
| | (3) | 1000 cc |
| | (4) | 800 cc |
CORRECT ANSWER
(2) 1600 cc
| 60. | Organochlorines are |
| | (1) | Chemical fertilizers |
| | (2) | Biodegradable pesticides |
| | (3) | Non biodegradable pesticides |
| | (4) | Bio fertilizers |
CORRECT ANSWER
(3) Non biodegradable pesticides
| 61. | Mesothelium forms the lining / layer of ______ |
| | (1) | Epicardium |
| | (2) | Myocardium |
| | (3) | Lymph vessels |
| | (4) | Capillaries |
CORRECT ANSWER
(1) Epicardium
| 62. | As per Mendel, source of recombination is ________ |
| | (1) | independent assortment |
| | (2) | mutation |
| | (3) | dominance |
| | (4) | linkage |
CORRECT ANSWER
(1) independent assortment
| 63. | Which one of the following techniques is the best breeding method for animals having below average milk productivity ? |
| | (1) | Inbreeding |
| | (2) | Interspecific hybridisation |
| | (3) | Out-crossing |
| | (4) | Cross-breeding |
CORRECT ANSWER
(3) Out-crossing
| 64. | Match the enzyme in column I with their activity in column II correctly. |
| | | Column I | | Column II |
| | a) | Lyases | (1) | Transfer of chemical group between substrates |
| | b) | Hydrolases | (2) | Joining of two molecules |
| | c) | Ligases | (3) | hydrolysis of esters and ethers |
| | d) | Transferases | (4) | non - hydrolytic cleavage |
| |
| | (1) | a-iv, b-iii, c-ii, d-i |
| | (2) | a-iii, b-iv, c-ii, d-i |
| | (3) | a-iv, b-iii, c-i, d-ii |
| | (4) | a-iv, b-ii, c-iii, d-i |
| |
CORRECT ANSWER
(1) a-iv, b-iii, c-ii, d-i
| 65. | These blood corpuscles are lowest in number. These are non-phagocytic and secrete heparin. They are ________ |
| | (1) | Monocytes |
| | (2) | Neutrophils |
| | (3) | Basophils |
| | (4) | Eosinophils |
CORRECT ANSWER
(3) Basophils
| 66. | In photo chemical reaction, the enzyme which controls formation of `NADPH_2` is |
| | (1) | Plastoquinone NADP reductase |
| | (2) | ferredoxin NADP oxidase |
| | (3) | ferredoxin NADP reductase |
| | (4) | Plastocyanin NADP reductase |
CORRECT ANSWER
(3) ferredoxin NADP reductase
| 67. | A cross between pure tall pea plant with green pods & dwarf pea plant with yellow pods produced 32 plants in `F_2` generation. Out of 32, how many are dwarf plants ? |
| | (1) | 2 |
| | (2) | 8 |
| | (3) | 18 |
| | (4) | 6 |
CORRECT ANSWER
(2) 8
| 68. | China rose belongs to which of the following families ? |
| | (1) | Fabaceae |
| | (2) | Liliaceae |
| | (3) | Solanaceae |
| | (4) | Malvaceae |
CORRECT ANSWER
(4) Malvaceae
| 69. | Washing and filtering of contaminated lac is done to obtain __________ |
| | (1) | Isinglass |
| | (2) | Silage |
| | (3) | Shellac |
| | (4) | Ink |
CORRECT ANSWER
(3) Shellac
| 70. | Given below is illustration of vaccine manufacturing process in brief. Identify the labels 'X' and "Y" and select the correct option from given codes |
|  |
| | (1) | X-inactivated organisms, Y-adjuvant |
| | (2) | X-antibodies, Y-adjuvant |
| | (3) | X-adjuvant, Y-toxoid |
| | (4) | X-toxoid, Y-activated organisms |
CORRECT ANSWER
(1) X-inactivated organisms, Y-adjuvant
| 71. | Which chamber of heart has the thickest wall ? |
| | (1) | Left Ventricle |
| | (2) | Right Ventricle |
| | (3) | Left Auricle |
| | (4) | Right Auricle |
CORRECT ANSWER
(1) Left Ventricle
| 72. | In an Embryosac, Egg apparatus is at ________ of ovule. |
| | (1) | lateral position |
| | (2) | chalazal end |
| | (3) | centre of nucellus |
| | (4) | micropylar end |
CORRECT ANSWER
(4) micropylar end
| 73. | Homologous organs are |
| | (1) | Wings of Pigeon & Butterfly |
| | (2) | Wings of Pterodactyle and Butterfly |
| | (3) | Wings of Pigeon & fore limbs of Human |
| | (4) | Wings of Bat and Housefly |
CORRECT ANSWER
(3) Wings of Pigeon & fore limbs of Human
| 74. | Mesenteries are present around ______ |
| | (1) | Stomach |
| | (2) | Pancreas and Liver |
| | (3) | Liver and stomach |
| | (4) | Intestinal coils |
CORRECT ANSWER
(4) Intestinal coils
| 75. | During DNA replication, which one of the following enzyme removes RNA primers from the Okazaki fragments ? |
| | (1) | DNA polymerase |
| | (2) | RNA polymerase |
| | (3) | RNAase |
| | (4) | Helicase |
CORRECT ANSWER
(3) RNAase
| 76. | Identify the wrong pair |
| | (1) | Testa - protection to seed |
| | (2) | Endosperm - Nutrition to embryo |
| | (3) | Nucellus - passage for entry of pollen tube |
| | (4) | Funicle - support to ovule |
CORRECT ANSWER
(3) Nucellus - passage for entry of pollen tube
| 77. | The prokaryotic cell lacks following organelle EXCEPT |
| | (1) | Mitochondrion |
| | (2) | Ribosome |
| | (3) | Golgi complex |
| | (4) | Lysosome |
CORRECT ANSWER
(2) Ribosome
| 78. | Which hormone checks renin-angiotensin mechanism and causes vasodilation as well as decreased blood pressure? |
| | (1) | Antidiuretic hormone |
| | (2) | Adreno - Cortico Tropic Hormone |
| | (3) | Aldosterone |
| | (4) | Atrial Natriuretic hormone |
CORRECT ANSWER
(4) Atrial Natriuretic hormone
| 79. | Which one of the following is true for Expiration ? |
| | (1) | Lower part of sternum is raised. |
| | (2) | Space of thoracic cavity increases. |
| | (3) | The intercostal muscles contract. |
| | (4) | Ribs are pulled inwards. |
CORRECT ANSWER
(4) Ribs are pulled inwards.
| 80. | Which of the following compounds are useful in cell wall composition of roothair ? |
| | (1) | Pectin only |
| | (2) | Peptidoglycan |
| | (3) | Cellulose only |
| | (4) | Pectic compounds and cellulose |
CORRECT ANSWER
(4) Pectic compounds and cellulose
| 81. | If parathyroid glands of a man are removed, then what will be the effect? |
| | (1) | Elevation of blood pressure |
| | (2) | Decrease in blood calcium level |
| | (3) | Onset of myxoedema |
| | (4) | Onset of ageing |
CORRECT ANSWER
(2) Decrease in blood calcium level
| 82. | Human beings have two sets of teeth in life. Therefore, it is described as ______ dentition. |
| | (1) | Diphyodont |
| | (2) | Acrodont |
| | (3) | Heterodont |
| | (4) | Thecodont |
CORRECT ANSWER
(1) Diphyodont
| 83. | Identify the gene that code for ᵦ- galactosidase in lac operon |
| | (1) | z |
| | (2) | i |
| | (3) | y |
| | (4) | a |
CORRECT ANSWER
(1) z
| 84. | Chromomeres are the parts of chromosome where _________. |
| | (1) | Crossing over takes place. |
| | (2) | Chromatids are attached. |
| | (3) | Nucleoli are formed. |
| | (4) | Small swellings are seen. |
CORRECT ANSWER
(4) Small swellings are seen.
| 85. | What is the genotype of a female bird ? |
| | (1) | AA + ZZ |
| | (2) | AA + XY |
| | (3) | AA + XX |
| | (4) | AA + ZW |
CORRECT ANSWER
(4) AA + ZW
| 86. | What is NOT true about zona pellucida ? |
| | (1) | It contains cells of Rauber. |
| | (2) | It is non-cellular and transparent. |
| | (3) | It prevents implantation at abnormal site. |
| | (4) | It remains intact during cleavage. |
CORRECT ANSWER
(1) It contains cells of Rauber.
| 87. | Identify the WRONG statement |
| | (1) | A membrane which allows the passage of some solutes along with the solvent molecules is called differentially permeable membrane |
| | (2) | Semipermeable membrane allows the movement of solvent as well as solute molecules through it. |
| | (3) | The cell becomes turgid after endosmosis |
| | (4) | After exosmosis the cell becomes flaccid |
CORRECT ANSWER
(2) Semipermeable membrane allows the movement of solvent as well as solute molecules through it.
| 88. | Which one of the following is a recessive trait in Garden Pea ? |
| | (1) | Coloured flower |
| | (2) | Constricted pod |
| | (3) | Coloured seed coat |
| | (4) | Axial Flower |
CORRECT ANSWER
(2) Constricted pod
| 89. | During elongation phase of growth, the cells become turgid due to the solute concentration favoured by __________ |
| | (1) | plasmolysis |
| | (2) | exosmosis |
| | (3) | imbibition |
| | (4) | endosmosis |
CORRECT ANSWER
(4) endosmosis
| 90. | The pH of nutrient medium in plant tissue culture is between _______ |
| | (1) | 6 - 6.8 |
| | (2) | 3-5 |
| | (3) | 5 - 5.8 |
| | (4) | 4.5 - 5.5 |
CORRECT ANSWER
(3) 5 - 5.8
| 91. | Identify the INCORRECT pair of plant pigments and their colour. |
| | (1) | xanthophyll - yellow |
| | (2) | chlorophyll - green |
| | (3) | phycocyanin - red |
| | (4) | carotenoids – orange |
CORRECT ANSWER
(3) phycocyanin - red
| 92. | During aerobic respiration a total of _____ ATP molecules are produced at substrate level phosphorylation. |
| | (1) | 6 |
| | (2) | 2 |
| | (3) | 38 |
| | (4) | 36 |
CORRECT ANSWER
(1) 6
| 93. | ________ foetal hormone signals that it is mature and ready for birth. |
| | (1) | Prostaglandin |
| | (2) | Corticotropin |
| | (3) | Oxytocin |
| | (4) | Progesterone |
CORRECT ANSWER
(2) Corticotropin
| 94. | Which one of the following is NOT a uniparental method of asexual reproduction ? |
| | (1) | root tuber |
| | (2) | leaf propagules |
| | (3) | stem tuber |
| | (4) | grafting |
CORRECT ANSWER
(4) grafting
| 95. | Vinegar is obtained from |
| | (1) | Rhizopus arrhizus |
| | (2) | Aspergillus niger |
| | (3) | Penicillium sps |
| | (4) | Acetobacter aceti |
CORRECT ANSWER
(4) Acetobacter aceti
| 96. | During lytic cycle of phage, capsid which remains outside the bacterial cell is called |
| | (1) | Nucleiod |
| | (2) | Capsomere |
| | (3) | Ghost |
| | (4) | Virion |
CORRECT ANSWER
(3) Ghost
| 97. | The process of formation of gametes from primordial germ cells of gonad is called ________. |
| | (1) | Oogenesis |
| | (2) | Spermatogenesis |
| | (3) | Gametogenesis |
| | (4) | Organogenesis |
CORRECT ANSWER
(3) Gametogenesis
| 98. | In a road accident, the patient with unknown blood group needs immediate blood transfusion. His friend donates his blood. In this case, which is the blood group of donor ? |
| | (1) | Blood group ‘A’ |
| | (2) | Blood group ‘O’ |
| | (3) | Blood group ‘AB’ |
| | (4) | Blood group ‘B’ |
CORRECT ANSWER
(2) Blood group ‘O’
| 99. | Select the INCORRECT statement. |
| | (1) | Electrostatic precipitator reduces smoke and dust. |
| | (2) | Dust from agricultural practices and construction industry is the greatest source of air pollution. |
| | (3) | Air pollutant nitrous oxide is laughing gas. |
| | (4) | Automobiles produce carbon monoxide and nitrous oxide. |
CORRECT ANSWER
(2) Dust from agricultural practices and construction industry is the greatest source of air pollution.
| 100. | The schizont stage of Plasmodium in man occurs in ___________ . |
| | (1) | Epidermal cells |
| | (2) | Spleen only |
| | (3) | Chromaffin cells |
| | (4) | RBCs only |
CORRECT ANSWER
(4) RBCs only
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