UP PGT 2021 — Biology (Series A)

Biology

1. 1. Match List – I with List – II and choose the correct answer using the codes given below : List – I (Animal association) — List – II (Definition) a. Cooperation — 1. Close association in which one species benefits b. Mutualism — 2. Loose association in which both species benefit c. Amensalism — 3. Close association in which both species benefit d. Commensalism — 4. One species inhibits the growth of another species but does not feed on it Codes : a b c d

   • (a) 2 3 4 1
   • (b) 4 2 3 1
   • (c) 1 3 2 4
   • (d) 3 2 4 1
   उत्तर देखें

   उत्तर: (a)

2. 2. Which one of the following stem shows secondary growth and vascular bundles are leptocentric ?

   • (a) Maize
   • (b) Cynodon
   • (c) Dracaena
   • (d) Wheat
   उत्तर देखें

   उत्तर: (c)

3. 3. Which stage of Puccinia is found on its alternative host ?

   • (a) Uredospore
   • (b) Teleutospore
   • (c) Basidiospore
   • (d) Pycnidiospore
   उत्तर देखें

   उत्तर: (d)

4. 4. In which of the following viruses, DNA is the genetic material ?

   • (a) TMV
   • (b) MS2
   • (c) T₂ phage
   • (d) None of the above
   उत्तर देखें

   उत्तर: (c)

5. 5. Line of growth found on the shell of Pila is called

   • (a) Spere
   • (b) Columella
   • (c) Sutures
   • (d) Varices
   उत्तर देखें

   उत्तर: (d)

6. 6. Reindeer moss is

   • (a) Cetraria islandica
   • (b) Cladonia rangifera
   • (c) Parmelia
   • (d) Stone mushroom
   उत्तर देखें

   उत्तर: (b)

7. 7. Which of the following statement is not true regarding the synthesis of proteins ?

   • (a) It requires m-RNA, t-RNA, ribosomes, amino acids, energy and enzymes
   • (b) Activated amino acids attach to t-RNA
   • (c) m-RNA is read in 5′→3′ direction
   • (d) Polypeptide synthesis proceeds from C-terminal to N-terminal end
   उत्तर देखें

   उत्तर: (d)

8. 8. How is it that, Taenia escapes digestion by the enzymes of the host, it is due to the presence of

   • (a) acid mucopolysaccharides
   • (b) alkaline mucopolysaccharides
   • (c) acid lipopolysaccharides
   • (d) alkaline lipopolysaccharides
   उत्तर देखें

   उत्तर: (b)

9. 9. Which one is not a fossil type ?

   • (a) Coal ball
   • (b) Amber
   • (c) Compaction
   • (d) Basalt
   उत्तर देखें

   उत्तर: (d)

10. 10. The genetic code is called degenerate code because

    • (a) One codon has many meanings
    • (b) More than one codon has the same meaning
    • (c) One codon has one meaning
    • (d) There are 64 codons present
    उत्तर देखें

    उत्तर: (b)

11. 11. Which of the following equations represents the central dogma of molecular biology ?

    • (a) DNA → RNA → Protein
    • (b) RNA → Protein → Enzyme
    • (c) Protein → RNA → DNA
    • (d) DNA → Protein → RNA
    उत्तर देखें

    उत्तर: (a)

12. 12. Which one is correctly paired ?

    • (a) Teak – Dipterocarpus
    • (b) Sal – Tectona
    • (c) Chir – Cedrus
    • (d) Sheesham – Dalbergia
    उत्तर देखें

    उत्तर: (d)

13. 13. The new varieties of a species are produced as a result of

    • (a) Microevolution
    • (b) Macroevolution
    • (c) Megaevolution
    • (d) Straight line evolution
    उत्तर देखें

    उत्तर: (a)

14. 14. The binomial system of Carolus Linnaeus was devoid of which of the following categories ?

    • (a) Genus and species
    • (b) Class and order
    • (c) Phylum and family
    • (d) Kingdom and class
    उत्तर देखें

    उत्तर: (c)

15. 15. CH₂=CH₂ is mainly responsible for

    • (a) Formation of root hair
    • (b) Formation of nodes
    • (c) Ripening of fruits
    • (d) Formation of internodes
    उत्तर देखें

    उत्तर: (c)

16. 16. Lac insect feeds on which of the following host plant ?

    • (a) Butea monosperma
    • (b) Zizyphus jujuba
    • (c) Cajanus cajan
    • (d) All of the above
    उत्तर देखें

    उत्तर: (d)

17. 17. Pinus protects itself from microbial and insect attack through

    • (a) Thick bark
    • (b) Dwarf shoots
    • (c) Mycorrhiza
    • (d) Resin
    उत्तर देखें

    उत्तर: (d)

18. 18. Which of the following floral formula is of Family Rosaceae ?

    • (a)
    • (b)
    • (c)
    • (d)
    उत्तर देखें

    उत्तर: (a)

19. 19. Which of the following animal is poisonous ?

    • (a) Hemidactylus
    • (b) Uromastix
    • (c) Ornithorhynchus male
    • (d) Chameleon
    उत्तर देखें

    उत्तर: (c)

20. 20. Which of the following fungal groups has septate hyphae and reproduces asexually by budding, conidia and fragmentation ?

    • (a) Basidiomycotina
    • (b) Zygomycetes
    • (c) Chytrids
    • (d) Glomeromycota
    उत्तर देखें

    उत्तर: (a)

21. 21. How many somites are present in Hirudinaria ?

    • (a) 32
    • (b) 33
    • (c) 34
    • (d) 35
    उत्तर देखें

    उत्तर: (b)

22. 22. Cauliflower, Cabbage, Knol-khol and Turnip belong to how many genera ?

    • (a) One
    • (b) Two
    • (c) Three
    • (d) Four
    उत्तर देखें

    उत्तर: (a)

23. 23. Which of the following is an anadromous fish ?

    • (a) Eel
    • (b) Carp
    • (c) Hilsa
    • (d) Goby
    उत्तर देखें

    उत्तर: (c)

24. 24. Which one is not correctly matched ?

    • (a) Cotton – Fruit fibre
    • (b) Coir – Mesocarp
    • (c) Jute – Stem fibre
    • (d) Flax – Bast fibre
    उत्तर देखें

    उत्तर: (a)

25. 25. In the Wild Life (Protection) Act, 1972, important wild animals have been placed in

    • (a) Two Schedules
    • (b) Three Schedules
    • (c) Five Schedules
    • (d) Six Schedules
    उत्तर देखें

    उत्तर: (c)

26. 26. The teeth are replaced by a horny beak in which of the following ?

    • (a) Rhynchocephalia
    • (b) Squamata
    • (c) Chelonia
    • (d) Crocodilia
    उत्तर देखें

    उत्तर: (c)

27. 27. Retort shaped cells are found in

    • (a) Funaria
    • (b) Anthoceros
    • (c) Lycopodium
    • (d) Sphagnum
    उत्तर देखें

    उत्तर: (d)

28. 28. Chapparal occurs in one of the areas

    • (a) Africa
    • (b) Siberia
    • (c) Canada
    • (d) Mediterranean area
    उत्तर देखें

    उत्तर: (d)

29. 29. Regular exercise can increase the size of muscles by 60%. This is mainly the result of an increase in the

    • (a) Diameter of muscle cells only
    • (b) Number of muscle cells only
    • (c) Number of myofibrils within muscle cells only
    • (d) All of the above
    उत्तर देखें

    उत्तर: (d)

30. 30. Chloride secreting cells of fishes are found in their

    • (a) Gills
    • (b) Kidneys
    • (c) Liver
    • (d) Posterior pituitary
    उत्तर देखें

    उत्तर: (a)

31. 31. In which of the following amphibians the fertilized eggs develop in the stomach of the female and little frogs come out of its mouth ?

    • (a) Salamandra
    • (b) Rheobatrachus
    • (c) Ichthyophis ♀
    • (d) Alytes
    उत्तर देखें

    उत्तर: (b)

32. 32. In a dihybrid test cross if parental types exceed the recombination types among the resultant progeny, it is due to

    • (a) Linkage
    • (b) Complete linkage
    • (c) Independent assortment
    • (d) Crossing over
    उत्तर देखें

    उत्तर: (a)

33. 33. Monogenean ectoparasites of fishes are particularly found on their

    • (a) Caudal fin
    • (b) Gills
    • (c) Pectoral fins
    • (d) Claspers
    उत्तर देखें

    उत्तर: (b)

34. 34. In Palaemon the hastate plate is found on the ________ side of cardiac stomach.

    • (a) dorsal
    • (b) lateral
    • (c) ventral
    • (d) radial
    उत्तर देखें

    उत्तर: (c)

35. 35. Which of the following is not correctly matched ?

    • (a) Frog – Telolecithal eggs
    • (b) Insect – Centrolecithal eggs
    • (c) Mammal – Microlecithal eggs
    • (d) Bird – Polylecithal eggs
    उत्तर देखें

    उत्तर: (c)

36. 36. “Sinigrin” is present in the members of family

    • (a) Malvaceae
    • (b) Rutaceae
    • (c) Brassicaceae
    • (d) None of these
    उत्तर देखें

    उत्तर: (c)

37. 37. Which of the following enhances the flavour of food ?

    • (a) Magnesium carbonate
    • (b) Tetrazines
    • (c) Nitrous oxide
    • (d) Monosodium glutamate
    उत्तर देखें

    उत्तर: (d)

38. 38. The micronucleus of Paramecium is

    • (a) diploid
    • (b) polyploid
    • (c) non-reproductive
    • (d) the main source of RNA
    उत्तर देखें

    उत्तर: (a)

39. 39. Copper deficiency leads to

    • (a) Exanthema
    • (b) Whiptail of cauliflower
    • (c) Little leaf condition
    • (d) Interveinal chlorosis
    उत्तर देखें

    उत्तर: (a)

40. 40. The term ‘Single Cell Protein’ (SCP) refers to

    • (a) Protein obtained from a single cell
    • (b) Protein obtained from the progeny of a single cell
    • (c) Protein obtained from the large scale growth of algae, fungi or bacteria
    • (d) Viral coat proteins
    उत्तर देखें

    उत्तर: (c)

41. 41. Nitrogenous and metabolic wastes are stored in the

    • (a) Amniotic bag
    • (b) Allantois
    • (c) Yolk sac
    • (d) Exocoel
    उत्तर देखें

    उत्तर: (b)

42. 42. The larval life of Bombyx mori lasts for ________ days.

    • (a) 32
    • (b) 42
    • (c) 52
    • (d) 62
    उत्तर देखें

    उत्तर: —

43. 43. Considering the amount of yolk and its distribution, the eggs of frog are

    • (a) Microlecithal and centrolecithal
    • (b) Mesolecithal and telolecithal
    • (c) Polylecithal and isolecithal
    • (d) Mesolecithal and isolecithal
    उत्तर देखें

    उत्तर: (b)

44. 44. At regular intervals the heart beat is reversed in

    • (a) Herdmania
    • (b) Amphioxus
    • (c) Scoliodon
    • (d) Uromastix
    उत्तर देखें

    उत्तर: (a)

45. 45. The sorus of Dryopteris is

    • (a) Mixed type
    • (b) Simple type
    • (c) Gradate type
    • (d) None of these
    उत्तर देखें

    उत्तर: (a)

46. 46. Which one of the following gymnosperm phyla produces motile sperms, bears ovulate and microsporangiate cones on separate plants and has fleshy, coated seeds ?

    • (a) Coniferophyta
    • (b) Cycadophyta
    • (c) Gnetophyta
    • (d) None
    उत्तर देखें

    उत्तर: (b)

47. 47. Phages which show lysogenic cycle are called

    • (a) Temperate phage
    • (b) Lytic phage
    • (c) Virulent phage
    • (d) None of the above
    उत्तर देखें

    उत्तर: (a)

48. 48. The origin and diversification of Angiosperms was during which geological period ?

    • (a) Permian
    • (b) Triassic
    • (c) Jurassic
    • (d) Cretaceous
    उत्तर देखें

    उत्तर: (d)

49. 49. Of the following which cestode is protandrously hermaphrodite

    • (a) Diphylobothrium
    • (b) Dipylidium
    • (c) Taenia
    • (d) Echinococcus
    उत्तर देखें

    उत्तर: (c)

50. 50. The Valamen of orchid root is derived from the

    • (a) Phellogen of root
    • (b) Plerome of root
    • (c) Dermatogen of root
    • (d) Periblem of root
    उत्तर देखें

    उत्तर: (c)

51. 51. Consider the following statements regarding AIDS 1. It is caused by retrovirus, HIV 2. It replicates within T₄ lymphocytes 3. ELISA test detects the presence of virus particles 4. It may remain dormant for six years Of these statements :

    • (a) 1, 2 and 3 are correct
    • (b) 2, 3 and 4 are correct
    • (c) 1, 3 and 4 are correct
    • (d) 1, 2 and 4 are correct
    उत्तर देखें

    उत्तर: (d)

52. 52. Which of the following statement is true regarding the 3-pairs of appendages found in the nauplius larva ?

    • (a) Antennules and antennae are biramus
    • (b) Only antennules are biramus
    • (c) Only mandibles are biramus
    • (d) Both antennae and mandibles are biramus
    उत्तर देखें

    उत्तर: (d)

53. 53. Which of the following proenzyme is first converted to active enzyme by enterokinase and then by autocatalysis ?

    • (a) Pepsinogen
    • (b) Chymotrypsinogen
    • (c) Procarboxypeptidase
    • (d) Trypsinogen
    उत्तर देखें

    उत्तर: (d)

54. 54. The antitranspirant is/are

    • (a) PMA (Phenyl Mercuric Acetate)
    • (b) IAA (Indole Acetic Acid)
    • (c) MH (Mallic Hydrazide)
    • (d) All above
    उत्तर देखें

    उत्तर: (a)

55. 55. Which of the following stimulates the exocrine pancreas ?

    • (a) Secretin and pancreozymin
    • (b) Enterocrinin
    • (c) Insulin
    • (d) Glucagon
    उत्तर देखें

    उत्तर: (a)

56. 56. Diversity of the habitats over the total landscape or geographical area is called

    • (a) Alpha diversity
    • (b) Beta diversity
    • (c) Gamma diversity
    • (d) None of the above
    उत्तर देखें

    उत्तर: (c)

57. 57. Which statement does not explain the features of cycas ?

    • (a) Two kind of leaves
    • (b) Monoecious
    • (c) Wedge shaped microsporophyll
    • (d) Mycorrhizal association in roots
    उत्तर देखें

    उत्तर: —

58. 58. In incomplete dominance

    • (a) The phenotypic and genotypic ratios are same in F₁ generation
    • (b) The phenotypic and genotypic ratios are same in F₂ generation
    • (c) The phenotypic ratio and genotypic ratio are different in the F₁ generation
    • (d) The phenotypic and genotypic ratios are different in F₂ generation
    उत्तर देखें

    उत्तर: (b)

59. 59. Which of the following pair is not correctly matched ?

    • (a) Cnidaria – Radially symmetrical, tissue level organization
    • (b) Platyhelminthes – Unsegmented, acoelomate
    • (c) Nematoda – Unsegmented, pseudocoelomate
    • (d) Arthropoda – Metameric, coelomate
    उत्तर देखें

    उत्तर: (d)

60. 60. Epigynous flowers are found in

    • (a) Cucurbita
    • (b) Argemone
    • (c) Malva
    • (d) Solanum
    उत्तर देखें

    उत्तर: (a)

61. 61. Filaria is diagnosed by the presence of microfilariae in the human blood. For this, the blood sample is taken

    • (a) just after sunrise
    • (b) any time of the day
    • (c) between 4:30 and 6:30 in the evening
    • (d) between 10:00 p.m. and 4:00 a.m in the night
    उत्तर देखें

    उत्तर: (d)

62. 62. Match List – I with List – II and choose the correct answer using the codes given below : List – I — List – II a. Neutrophils — 1. Production of antibodies b. Eosinophils — 2. Kidney-shaped nucleus c. Monocytes — 3. Diapedesis d. Lymphocytes — 4. Number increases in allergy Codes : a b c d

    • (a) 1 4 2 3
    • (b) 4 2 3 1
    • (c) 3 2 1 4
    • (d) 3 4 2 1
    उत्तर देखें

    उत्तर: (d)

63. 63. If an actin inhibiting drug is injected into an amoeba, its movement will

    • (a) stop instantly
    • (b) become faster
    • (c) become slower
    • (d) remain unaffected
    उत्तर देखें

    उत्तर: (a)

64. 64. In certain plants, the mechanism where timing of anther dehiscence and stigma receptivity do not coincide to avoid self-pollination is called

    • (a) Dichogamy
    • (b) Herkogamy
    • (c) Monoecy
    • (d) Dioecy
    उत्तर देखें

    उत्तर: (a)

65. 65. In Funaria, calyptra is derived from

    • (a) Antheridium
    • (b) Columella
    • (c) Capsule
    • (d) Archegonium
    उत्तर देखें

    उत्तर: (d)

66. 66. The growth of Obelia colony is of ________ type.

    • (a) bipodal
    • (b) biramous
    • (c) sympodial
    • (d) racemose
    उत्तर देखें

    उत्तर: (c)

67. 67. Chief function of Pedicellariae in star fish is

    • (a) Respiration
    • (b) Capturing
    • (c) Cleansing
    • (d) Feeding
    उत्तर देखें

    उत्तर: (c)

68. 68. Birds are capable of removing during inspiration which of the following amount of oxygen from the air ?

    • (a) 20%
    • (b) 40%
    • (c) 90%
    • (d) 100%
    उत्तर देखें

    उत्तर: (c)

69. 69. Alluvial soils are mostly found in which region ?

    • (a) Northern India
    • (b) Eastern India
    • (c) Southern India
    • (d) Gangetic Jamuna plains
    उत्तर देखें

    उत्तर: (d)

70. 70. Which of the snakes found in India is non-poisonous ?

    • (a) King Cobra
    • (b) Banded Krait
    • (c) Boa constrictor
    • (d) Brown Himalayan viper
    उत्तर देखें

    उत्तर: (c)

71. 71. Trypanosoma is polymorphic. Which of its following stages lacks a flagellum ?

    • (a) Leptomonad
    • (b) Crithidial
    • (c) Trypanosome
    • (d) Leishmanial
    उत्तर देखें

    उत्तर: (d)

72. 72. Cleavage in Amphioxus is

    • (a) Holoblastic and equal
    • (b) Holoblastic and unequal
    • (c) Meroblastic and superficial
    • (d) Meroblastic and discoidal
    उत्तर देखें

    उत्तर: (a)

73. 73. In prophase of meiosis chaismata are due to

    • (a) Mutation
    • (b) Crossing over
    • (c) Translocation
    • (d) Inversion
    उत्तर देखें

    उत्तर: (b)

74. 74. Centripetal xylem is present in

    • (a) Dicot root
    • (b) Dicot stem
    • (c) Monocot stem
    • (d) Branches of stem
    उत्तर देखें

    उत्तर: (a)

75. 75. Which of the following statement is not true regarding cytochrome oxidase ?

    • (a) It is found in mitochondria
    • (b) It transfers electrons to oxygen
    • (c) It contains only copper
    • (d) It contains both copper and iron
    उत्तर देखें

    उत्तर: (c)

76. 76. PCO cycle is also known as

    • (a) C₂ cycle
    • (b) C₃ cycle
    • (c) C₄ cycle
    • (d) CAM cycle
    उत्तर देखें

    उत्तर: (a)

77. 77. h′ = 0.61λ/(n′ sinθ) is the formula for

    • (a) Resolving power
    • (b) Kinetic energy
    • (c) Light energy
    • (d) Thermodynamics
    उत्तर देखें

    उत्तर: (a)

78. 78. Protein Keratin is not found in the epidermis of

    • (a) Fish
    • (b) Reptile
    • (c) Bird
    • (d) Mammal
    उत्तर देखें

    उत्तर: (a)

79. 79. Which of the following immunoglobulin molecules is largest ?

    • (a) IgA
    • (b) IgD
    • (c) IgM
    • (d) IgE
    उत्तर देखें

    उत्तर: (c)

80. 80. Horse-shoe shaped ovule is

    • (a) Campylotropous
    • (b) Hemianatropous
    • (c) Amphitropous
    • (d) Circinotropous
    उत्तर देखें

    उत्तर: (c)

81. 81. Which of the following is not correctly matched ?

    • (a) Translocation – Interchromosomal rearrangement
    • (b) Epistatic gene – Stimulating the action of another gene
    • (c) Codominance – A character controlled by two genes
    • (d) Neomorphs – Produce a phenotype different from that of wild gene
    उत्तर देखें

    उत्तर: (b)

82. 82. Seeds having longest viability belong to

    • (a) Chenopodium
    • (b) Quercus
    • (c) Lupinus
    • (d) Eucalyptus
    उत्तर देखें

    उत्तर: (c)

83. 83. Which of the following toxicant is found in the hydrosphere ?

    • (a) Nitrous oxide
    • (b) Detergents
    • (c) Sulphur dioxide
    • (d) Ozone
    उत्तर देखें

    उत्तर: (b)

84. 84. A tumour like tissue of thin walled cells developing over the wounds is called

    • (a) Tyloses
    • (b) Gall
    • (c) Callose
    • (d) Callus
    उत्तर देखें

    उत्तर: (d)

85. 85. Which one is an important constituent of renin-angiotensinogen-aldosterone system ?

    • (a) JGA cells
    • (b) Plasma cells
    • (c) Macular cells
    • (d) Erythropoietin
    उत्तर देखें

    उत्तर: (a)

86. 86. A sample of ten people have the following body temperature in °C : 36, 34, 41, 39, 37, 43, 36, 37, 41 and 39. Which of the following represents the standard deviation ?

    • (a) 2.65 °C
    • (b) 2.90 °C
    • (c) 3.10 °C
    • (d) 3.50 °C
    उत्तर देखें

    उत्तर: (a)

87. 87. The stain orcein is obtained from the thallus of

    • (a) Roccella sp.
    • (b) Cladonia sp.
    • (c) Usnea sp.
    • (d) Parmelia sp.
    उत्तर देखें

    उत्तर: (a)

88. 88. Which one of the following is a food borne toxin ?

    • (a) Tetanus toxin
    • (b) Botulinum toxin
    • (c) Cholera toxin
    • (d) Diphtheria toxin
    उत्तर देखें

    उत्तर: (b)

89. 89. Which of the following hormones is not correctly matched ?

    • (a) Melatonin – Epiphysis
    • (b) Melanotropin – Middle lobe of pituitary
    • (c) Leptin – Adipocytes
    • (d) Renin – Stomach of infants
    उत्तर देखें

    उत्तर: (d)

90. 90. Development of Anther in angiosperms is

    • (a) Leptosporangiate
    • (b) Eusporangiate
    • (c) Gradate
    • (d) Simple
    उत्तर देखें

    उत्तर: (b)

91. 91. The terms lotic and lentic refers to

    • (a) Marine habitat
    • (b) Terrestrial habitat
    • (c) Fresh water habitat
    • (d) Estuarine habitat
    उत्तर देखें

    उत्तर: (c)

92. 92. Apocarpous condition occurs in

    • (a) Liliaceae
    • (b) Graminae
    • (c) Ranunculaceae
    • (d) Compositae
    उत्तर देखें

    उत्तर: (c)

93. 93. Chylorhizy is found in

    • (a) Opuntia
    • (b) Euphorbia
    • (c) Asparagus
    • (d) Aloe
    उत्तर देखें

    उत्तर: (c)

94. 94. The tendril shows

    • (a) Haptotropism
    • (b) Chemotropism
    • (c) Phototropism
    • (d) Hydrotropism
    उत्तर देखें

    उत्तर: (a)

95. 95. Leafless stem of onion which produces flowers is called

    • (a) Peduncle
    • (b) Floral axis
    • (c) Scape
    • (d) Rachis
    उत्तर देखें

    उत्तर: (c)

96. 96. Which of the following is permitted in a wild life sanctuary ?

    • (a) Hunting of animals
    • (b) Cutting of trees
    • (c) Grazing of cattles
    • (d) Collection of fruits, firewood and medicinal plants
    उत्तर देखें

    उत्तर: (d)

97. 97. According to Geological Time Scale which one is the oldest period among the following ?

    • (a) Cambrian
    • (b) Carboniferous
    • (c) Ordovician
    • (d) Permian
    उत्तर देखें

    उत्तर: (a)

98. 98. The phenomenon of Bradytely is exhibited by which of the following animal ?

    • (a) Neoceratodus only
    • (b) Latimaria only
    • (c) Sphenodon only
    • (d) All of the above
    उत्तर देखें

    उत्तर: (d)

99. 99. Halophytic fern is

    • (a) Adiantum emarginatum
    • (b) Asplinium nidus
    • (c) Acrostichum aureum
    • (d) None
    उत्तर देखें

    उत्तर: (c)

100. 100. Stratification of trees is seen in

     • (a) Grasslands
     • (b) Alpine regions
     • (c) Temperate region
     • (d) Tropical rain forests
     उत्तर देखें

     उत्तर: (d)

101. 101. Krebs-Henseliet cycle is also called

     • (a) Krebs cycle
     • (b) Tricarboxylic acid cycle
     • (c) Citric acid cycle
     • (d) Urea cycle
     उत्तर देखें

     उत्तर: (d)

102. 102. Interventricular septum is incomplete in

     • (a) Rana
     • (b) Uromastix
     • (c) Columba
     • (d) Oryctolagus
     उत्तर देखें

     उत्तर: (b)

103. 103. Which of the following is the correct match of the algal group with its food reserve ? Algal Group — Food Reserve a. Bacillariophyceae — i. Oil b. Xanthophyceae — ii. Leucosin c. Phaeophyceae — iii. Manitol d. Chlorophyceae — iv. Volutin v. Starch Codes : a b c d

     • (a) iv i iii v
     • (b) ii i iii iv
     • (c) iv i ii v
     • (d) i v iii ii
     उत्तर देखें

     उत्तर: (a)

104. 104. Which pair is correct ?

     • (a) Cruciferae – Pentamerous
     • (b) Ranunculaceae – Bicarpellary
     • (c) Capparidaceae – Androphore
     • (d) Cucurbitaceae – Axile Placentation
     उत्तर देखें

     उत्तर: (c)

105. 105. During its entire life the queen bee copulates

     • (a) Once only
     • (b) Twice only
     • (c) Thrice only
     • (d) Continuously
     उत्तर देखें

     उत्तर: (a)

106. 106. The process where Bacterial gene are transmitted from donar to recipient as part of the sex factor termed

     • (a) Conjugation
     • (b) Sexduction
     • (c) Transformation
     • (d) Transduction
     उत्तर देखें

     उत्तर: (b)

107. 107. According to Bower and Goebel Rhizophore of selaginella is

     • (a) A stem
     • (b) A root
     • (c) An organ sui-generis
     • (d) None of the above
     उत्तर देखें

     उत्तर: (c)

108. 108. Germination of pollen grain on the stigma is called

     • (a) Autogamy
     • (b) In situ germination
     • (c) In vivo germination
     • (d) In vitro germination
     उत्तर देखें

     उत्तर: (c)

109. 109. The rate of oxygen consumption of an animal is equal to x at 0°C. If Q₁₀ is equal to 2, at which of the following temperatures the rate will be 8x ?

     • (a) 5°C
     • (b) 10°C
     • (c) 30°C
     • (d) 35°C
     उत्तर देखें

     उत्तर: (c)

110. 110. Feeding in Sporozoa is

     • (a) by cytostome
     • (b) autotrophic
     • (c) by micropores
     • (d) ciliary
     उत्तर देखें

     उत्तर: (c)

111. 111. In arithmetic average the meaning of Σ is

     • (a) Sample mean
     • (b) Number of individuals
     • (c) Summation
     • (d) Individual measures
     उत्तर देखें

     उत्तर: (c)

112. 112. An algae having chlorophyll a, floridian starch as storage product and lacking flagellate cells belongs to the class

     • (a) Phaeophyceae
     • (b) Chlorophyceae
     • (c) Rhodophyceae
     • (d) Xanthophyceae
     उत्तर देखें

     उत्तर: (c)

113. 113. Fibrous bands present in endothecium of anther wall is made up of

     • (a) Sporopollenin
     • (b) α-cellulose
     • (c) Pectin
     • (d) Lignin
     उत्तर देखें

     उत्तर: (b)

114. 114. Which one is most primitive among the following in Geological Time Scale ?

     • (a) Lycopodium
     • (b) Selaginella
     • (c) Equisetum
     • (d) Psilotum
     उत्तर देखें

     उत्तर: (d)

115. 115. Auxospores are found in

     • (a) Cynophyceae
     • (b) Chlorophyceae
     • (c) Rhodophyceae
     • (d) Bacillariophyceae
     उत्तर देखें

     उत्तर: (d)

116. 116. Polysome consists

     • (a) Ribosome and t RNA
     • (b) Lysosome
     • (c) Chromosome and centrosome
     • (d) Ribosome and m RNA
     उत्तर देखें

     उत्तर: (d)

117. 117. Placenta in humans is

     • (a) chorionic, monodiscoidal, haemachorial
     • (b) yolk-sac, diffuse, epitheliochorial
     • (c) allantoic, cotledonary, haemoendothelial
     • (d) allantoic, zonary, syndesmo-chorial
     उत्तर देखें

     उत्तर: (a)

118. 118. In Griffith experiment of transformation virulent strain is called as

     • (a) S-strain
     • (b) R-strain
     • (c) M-strain
     • (d) K-strain
     उत्तर देखें

     उत्तर: (a)

119. 119. Lomasome represents

     • (a) Membrane structure
     • (b) Mitochondrial equivalent
     • (c) Plastid
     • (d) Irregular structures
     उत्तर देखें

     उत्तर: (a)

120. 120. Which one of the following is a fungal disease of plants ?

     • (a) Cucumber mosaic
     • (b) Fire blight of pear
     • (c) Crown gall
     • (d) Apple scab
     उत्तर देखें

     उत्तर: (d)

121. 121. Only smooth walled rhizoids are found in

     • (a) Riccia
     • (b) Marchantia
     • (c) Pellia
     • (d) Funaria
     उत्तर देखें

     उत्तर: (c)

122. 122. A prokaryotic cell lacks

     • (a) only histones in its DNA
     • (b) only cytoskeleton
     • (c) only sub-cellular organelles
     • (d) all of the above
     उत्तर देखें

     उत्तर: (d)

123. 123. Which one is found in endospore of bacteria not in vegetative cell ?

     • (a) Muramic acid
     • (b) Dipicolinic acid
     • (c) Glycolic acid
     • (d) None of the above
     उत्तर देखें

     उत्तर: (b)

124. 124. One species inhibits the growth of another species but does not feed on it. This is called

     • (a) Commensalism
     • (b) Mutualism
     • (c) Cooperation
     • (d) Amensalism
     उत्तर देखें

     उत्तर: (d)

125. 125. Weeds of the fish pond having fry is removed by

     • (a) Weedicides
     • (b) Herbicides
     • (c) Pesticides
     • (d) Mechanical uprooting
     उत्तर देखें

     उत्तर: (d)