UP PGT 2016 — Biology (Series A)

Biology

1. 1. Glucagon stimulates

   • (a) Increase of breakdown of glycogen to blood sugar
   • (b) Formation of glucose from amino acids
   • (c) Rise of blood sugar level
   • (d) All of these
   उत्तर देखें

   उत्तर: —

2. 2. First United Nations Conference on Human Environment was held in Stockholm in the year

   • (a) 1972
   • (b) 1986
   • (c) 1992
   • (d) 2000
   उत्तर देखें

   उत्तर: (a)

3. 3. Silica for the formation of siliceous spicules is

   • (a) Synthesized by the sponge
   • (b) Provided by symbiotic algae
   • (c) Supplied by bacteria
   • (d) Extracted by the sponge from the sea water
   उत्तर देखें

   उत्तर: (d)

4. 4. Which of the following plants produce green spores ?

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

   उत्तर: (d)

5. 5. Aerial respiration in pila occurs from

   • (a) Pulmonary sac
   • (b) Mantle
   • (c) Ctenidium
   • (d) Branchiae
   उत्तर देखें

   उत्तर: (a)

6. 6. Naturally occuring enzyme lysozyme is found in

   • (a) Saliva
   • (b) Tears
   • (c) Both (A) and (B)
   • (d) None of the above
   उत्तर देखें

   उत्तर: (c)

7. 7. When the expression of a gene is changed due to presence of another gene, it is called as

   • (a) Overdominance
   • (b) Lethal genes
   • (c) Selfish gene
   • (d) Epistasis
   उत्तर देखें

   उत्तर: (d)

8. 8. Elettaria Cardamomum belongs to

   • (a) Dicot
   • (b) Monocot
   • (c) Conifer
   • (d) Monochlamydeae
   उत्तर देखें

   उत्तर: (b)

9. 9. Root-Knot disease caused by

   • (a) Mycoplasma
   • (b) Nematodes
   • (c) Virus
   • (d) Fungi
   उत्तर देखें

   उत्तर: (b)

10. 10. Metamorphosis in cockroach is regulated mainly by

    • (a) Corpora cardiaca
    • (b) Prothora gland
    • (c) Corpora allata
    • (d) Brain
    उत्तर देखें

    उत्तर: (c)

11. 11. Which genetically engineered microbe used in production of human insulin ?

    • (a) Bacillus thuringiensis
    • (b) Rhizobium meliloti
    • (c) Escherichia coli
    • (d) Pseudomonas putida
    उत्तर देखें

    उत्तर: (c)

12. 12. ‘Mother of Pearl’ is known as

    • (a) Conchyolin
    • (b) Calcite
    • (c) Nacre
    • (d) None of these
    उत्तर देखें

    उत्तर: (c)

13. 13. A botanical name in which specific epithet repeats exactly the generic name is called

    • (a) Tautonym
    • (b) Synonym
    • (c) Homonym
    • (d) Autonym
    उत्तर देखें

    उत्तर: (a)

14. 14. Montane zone of Western Himalayan Floristic region extends from

    • (a) 1,000 to 5,000 ft. above sea level
    • (b) 5,000 to 10,000 ft. above sea level
    • (c) 5,000 to 11,675 ft. above sea level
    • (d) 6,000 to 11,675 ft. above sea level
    उत्तर देखें

    उत्तर: (c)

15. 15. Some ecologists prefer to call the green plants as “transducers” in place of

    • (a) Converters
    • (b) Consumers
    • (c) Producers
    • (d) Pioneers
    उत्तर देखें

    उत्तर: (c)

16. 16. Ozone is present in large concentration in

    • (a) Ionosphere
    • (b) Stratosphere
    • (c) Arctic region
    • (d) Antarctic region
    उत्तर देखें

    उत्तर: (b)

17. 17. Angular divergence in pentastichous phyllotaxy is

    • (a) 1/3 of 360°
    • (b) 2/5 of 360°
    • (c) 1/2 of 360°
    • (d) 1/4 of 360°
    उत्तर देखें

    उत्तर: (b)

18. 18. Synandrous stamens are found in family

    • (a) Asteraceae
    • (b) Malvaceae
    • (c) Cucurbitaceae
    • (d) Papilionaceae
    उत्तर देखें

    उत्तर: (c)

19. 19. Consider the following statements : 1. All fishes lay eggs. 2. All birds do not fly. 3. All lizards are poisonous. 4. Poison of viper is neurotoxic. 5. None of the mammals are poisonous Of these statements :

    • (a) Only 1 and 2 are correct
    • (b) Only 2, 3 and 4 are correct
    • (c) Only 2 and 5 are correct
    • (d) Only 2 is correct
    उत्तर देखें

    उत्तर: (d)

20. 20. Stain used for Gram staining is

    • (a) Aniline Blue
    • (b) Cotton Blue
    • (c) Crystal Violet
    • (d) Trypan Blue
    उत्तर देखें

    उत्तर: (c)

21. 21. Custard-apple (Annona squamosa) is a

    • (a) Composite fruit
    • (b) Simple fruit
    • (c) Aggregate fruit
    • (d) Syconus fruit
    उत्तर देखें

    उत्तर: (c)

22. 22. Amphiphloic siphonostele is found in

    • (a) Lycopodium
    • (b) Ephedra
    • (c) Selaginella
    • (d) Marsilea
    उत्तर देखें

    उत्तर: (d)

23. 23. Duplication of which region is expressed as bar-eye character in Drosophila ?

    • (a) 16 A of Y- chromosome
    • (b) 16 A of X- chromosome
    • (c) 18 A of Y- chromosome
    • (d) 18 B of Y- chromosome
    उत्तर देखें

    उत्तर: (b)

24. 24. Isobilateral arrangement of spores in spore-tetrad is reported in which plant ?

    • (a) Riccia personii
    • (b) Marchantia Palmata
    • (c) Pellia epiphylla
    • (d) Anthoceros laevis
    उत्तर देखें

    उत्तर: (a)

25. 25. In angiosperms, the megasporangium is represented by

    • (a) Carpel
    • (b) Ovary
    • (c) Ovule
    • (d) Embryosac
    उत्तर देखें

    उत्तर: (c)

26. 26. Methaemoglobinaemia is caused by

    • (a) Nitrate fertilizers
    • (b) Lead toxicity
    • (c) Fluorides in drinking water
    • (d) Oxitocin
    उत्तर देखें

    उत्तर: (a)

27. 27. Origin of seed-habit can be traced from which plant ?

    • (a) Lycopodium
    • (b) Selaginella
    • (c) Cycas
    • (d) Pinus
    उत्तर देखें

    उत्तर: (b)

28. 28. The blood capillaries of intestinal villi can not absorb

    • (a) Fatty acid and glycerol
    • (b) Glucose
    • (c) Salts
    • (d) Amino acids
    उत्तर देखें

    उत्तर: (a)

29. 29. Phenomenon of ‘triple fusion’ is reported from

    • (a) Chlamydomonas
    • (b) Oedogonium
    • (c) Fucus
    • (d) Padina
    उत्तर देखें

    उत्तर: (b)

30. 30. Herkogamy is found in

    • (a) Cotton
    • (b) Calotropis
    • (c) Marigold
    • (d) Bajra
    उत्तर देखें

    उत्तर: (b)

31. 31. Fucoxanthin is main pigment in

    • (a) Scytonema
    • (b) Chara
    • (c) Ectocarpus
    • (d) Volvox
    उत्तर देखें

    उत्तर: (c)

32. 32. Gynobasic style is found in

    • (a) Asteraceae
    • (b) Lamiaceae
    • (c) Ranunculaceae
    • (d) Rosaceae
    उत्तर देखें

    उत्तर: (b)

33. 33. Pettenkoffer’s apparatus is used to determine the rate of

    • (a) Transpiration
    • (b) Photosynthesis
    • (c) Respiration
    • (d) Photo-respiration
    उत्तर देखें

    उत्तर: (c)

34. 34. All flightless birds belong to super order

    • (a) Odontognathae
    • (b) Impennae
    • (c) Ratitae
    • (d) None of these
    उत्तर देखें

    उत्तर: (c)

35. 35. Nilgiri Biosphere reserve is located in

    • (a) Tamil Nadu only
    • (b) Karnataka and Kerala only
    • (c) Tamil Nadu and Kerala only
    • (d) Tamil Nadu, Kerala and Karnataka only
    उत्तर देखें

    उत्तर: (d)

36. 36. Modified form of zoea larva is

    • (a) Mysis
    • (b) Alima
    • (c) Megalopa
    • (d) Cypris
    उत्तर देखें

    उत्तर: (a)

37. 37. Completely free movement of fishes between fresh and marine water without the purpose of breeding is called as

    • (a) Catadromous migration
    • (b) Amphidromas migration
    • (c) Anadromous migration
    • (d) None of these
    उत्तर देखें

    उत्तर: (b)

38. 38. The ratio between experimental and observed result is represented by

    • (a) Chi-square
    • (b) Theta value
    • (c) Variance ratio
    • (d) None of these
    उत्तर देखें

    उत्तर: (a)

39. 39. Synaptonemal complex is found in which stage of Meiosis ?

    • (a) Zygotene of prophase I
    • (b) Pachytene of prophase I
    • (c) Anaphase I
    • (d) Anaphase II
    उत्तर देखें

    उत्तर: (a)

40. 40. Which year declared as “International Year of Biodiversity” ?

    • (a) 2008
    • (b) 2009
    • (c) 2010
    • (d) 2011
    उत्तर देखें

    उत्तर: (c)

41. 41. The average weight of which of the following woods is heaviest ?

    • (a) Pine
    • (b) Deodar
    • (c) Shisham
    • (d) Sal
    उत्तर देखें

    उत्तर: (d)

42. 42. Which of the following is involved in the metamorphosis of insects ?

    • (a) Only Juvenile hormone
    • (b) Only ecdysone
    • (c) Both Juvenile hormone and ecdysone
    • (d) Pheromones
    उत्तर देखें

    उत्तर: (c)

43. 43. Which of the following is the smallest RNA ?

    • (a) m-RNA
    • (b) r-RNA
    • (c) t-RNA
    • (d) hn-RNA
    उत्तर देखें

    उत्तर: (c)

44. 44. Family cucurbitaceae belongs to order

    • (a) Ficoidales
    • (b) Passiflorales
    • (c) Sapindales
    • (d) Malveles
    उत्तर देखें

    उत्तर: (b)

45. 45. The micronucleus of Paramecium is

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

    उत्तर: (a)

46. 46. The enzyme fatty acid synthetase complex is made up of

    • (a) 5 units
    • (b) 6 units
    • (c) 7 units
    • (d) 8 units
    उत्तर देखें

    उत्तर: (d)

47. 47. Conjoint, bicollateral, open vascular bundles are found in stem of

    • (a) Cucurbitaceae
    • (b) Rosaceae
    • (c) Malvaceae
    • (d) Ranunculaceae
    उत्तर देखें

    उत्तर: (a)

48. 48. The book ‘Origin of Species’ was published in

    • (a) 1809
    • (b) 1858
    • (c) 1859
    • (d) 1956
    उत्तर देखें

    उत्तर: (c)

49. 49. In the Seismonastic movement of Mimosa pudica leaves involved

    • (a) Osmotic pressure
    • (b) Turgor pressure
    • (c) Wall pressure
    • (d) Diffusion pressure deficit
    उत्तर देखें

    उत्तर: (b)

50. 50. Oxygen-Haemoglobin dissociation curve will shift to right on decrease of

    • (a) CO₂ concentration
    • (b) Temperature
    • (c) pH
    • (d) Acidity
    उत्तर देखें

    उत्तर: (c)

51. 51. Which of the following is non-coding RNA ?

    • (a) mic RNA
    • (b) Hn RNA
    • (c) Sno RNA
    • (d) All given above
    उत्तर देखें

    उत्तर: (d)

52. 52. Bladder worm is found in

    • (a) Human muscles
    • (b) Muscles of pig or cow
    • (c) Human faces
    • (d) Soil
    उत्तर देखें

    उत्तर: (b)

53. 53. All organisms were classified into eight kingdoms of two empires by

    • (a) R. H. Whittakar
    • (b) Haeckel
    • (c) Woese et. al.
    • (d) Cavalier-Smith
    उत्तर देखें

    उत्तर: (d)

54. 54. Primitive streak in development of chick embryo is formed after incubation of

    • (a) 18 hours
    • (b) 16 hours
    • (c) 20 hours
    • (d) 22 hours
    उत्तर देखें

    उत्तर: (a)

55. 55. Which of the following genus has been divided into two sub-genera named Haploxylon and Diploxylon

    • (a) Cycas
    • (b) Pinus
    • (c) Ephedra
    • (d) Psilotum
    उत्तर देखें

    उत्तर: (b)

56. 56. Which of the following is not a halophyte ?

    • (a) Distichlis striata
    • (b) Artemisia tridentata
    • (c) Rhizophora
    • (d) Eichhornia crassipes
    उत्तर देखें

    उत्तर: (d)

57. 57. Which era is regarded as the ‘Age of Mammals’ ?

    • (a) Precambrian
    • (b) Palaeozoic
    • (c) Mesozoic
    • (d) Coenozoic
    उत्तर देखें

    उत्तर: (d)

58. 58. Pyramid of energy in pond ecosystem is always

    • (a) Inverted
    • (b) Firstly inverted then upright
    • (c) Upright only
    • (d) Any of the above
    उत्तर देखें

    उत्तर: (c)

59. 59. Xenobiotics refers to

    • (a) Endogenous poisons
    • (b) Antibodies
    • (c) Vaccines
    • (d) Exogenous poisons
    उत्तर देखें

    उत्तर: (d)

60. 60. Primary productivity is maximum in

    • (a) Tropical rain forests
    • (b) Tropical grassland
    • (c) Temperate forests
    • (d) Monsoon forests
    उत्तर देखें

    उत्तर: (a)

61. 61. One fibril of cell wall is made-up of

    • (a) 20 microfibrils
    • (b) 100 microfibrils
    • (c) 250 microfibrils
    • (d) 50 microfibrils
    उत्तर देखें

    उत्तर: (c)

62. 62. The Glomerular content of Proximal tubule in comparison with blood plasma is

    • (a) Isotonic urine
    • (b) Hypotonic urine
    • (c) Hypertonic urine
    • (d) None of these
    उत्तर देखें

    उत्तर: (a)

63. 63. What is called as “Reverse Genetics” approach ?

    • (a) From gene to enzyme
    • (b) From DNA to phenotype
    • (c) From phenotype to DNA
    • (d) From RNA to DNA
    उत्तर देखें

    उत्तर: (b)

64. 64. Who coined the term ecotype ?

    • (a) Odum
    • (b) Turessan
    • (c) Tansley
    • (d) Warming
    उत्तर देखें

    उत्तर: (b)

65. 65. In poisonous snakes, fangs are modified

    • (a) Maxillary teeth
    • (b) Mandibular teeth
    • (c) Molar teeth
    • (d) None of these
    उत्तर देखें

    उत्तर: (a)

66. 66. Which of the following blot procedures is used for the detection of DNA ?

    • (a) Northern blot
    • (b) Southern blot
    • (c) Western blot
    • (d) South-western blot
    उत्तर देखें

    उत्तर: (b)

67. 67. Viviparity generally occurs in

    • (a) Wuchereria
    • (b) Ancylostoma
    • (c) Enterobius
    • (d) Trichuris
    उत्तर देखें

    उत्तर: (a)

68. 68. Tehri Dam is constructed on which river ?

    • (a) Yamuna
    • (b) Ram Ganga
    • (c) Bhagirathi
    • (d) Alaknanda
    उत्तर देखें

    उत्तर: (c)

69. 69. Which of the following rule explains that the extremeties such as tails, legs and horn of animals are shorter in colder regions

    • (a) Bergman’s rule
    • (b) Glogan’s rule
    • (c) Jordan’s rule
    • (d) Allen’s rule
    उत्तर देखें

    उत्तर: (d)

70. 70. Which of the following is related to the study of phylogenetic tree ?

    • (a) Idiogram
    • (b) Electropherogram
    • (c) Cladogram
    • (d) Chromatogram
    उत्तर देखें

    उत्तर: (c)

71. 71. Which of the following properties of Type II restriction endonucleases make them very useful in the field of genetic engineering ?

    • (a) They cleave DNA within their recognition sequence
    • (b) They require no ATP
    • (c) They recognize a palindomic sequence of 4 to 6 bp long nucleotides
    • (d) All of the above
    उत्तर देखें

    उत्तर: (d)

72. 72. A symport system moves

    • (a) One type of molecules unidirectionally
    • (b) Two solutes unidirectionally
    • (c) Two types of molecules in opposite directions
    • (d) One type of molecules bidirectionally
    उत्तर देखें

    उत्तर: (b)

73. 73. Which of the following aquatic biomes has the highest primary productivity ?

    • (a) Swamps
    • (b) Coral reefs
    • (c) Estuary
    • (d) None of the above
    उत्तर देखें

    उत्तर: (b)

74. 74. “Blue baby syndrome” caused by impure water of

    • (a) Arsenic
    • (b) Cadmium
    • (c) Nitrate
    • (d) Mercury
    उत्तर देखें

    उत्तर: (c)

75. 75. Making of a web by the spider is an example of

    • (a) Fixed action pattern
    • (b) Imprinting
    • (c) Learned behaviour
    • (d) Releaser
    उत्तर देखें

    उत्तर: (a)

76. 76. A radially symmetrical invertebrate animal, with differentiation of tissues only, will be placed in

    • (a) Porifera
    • (b) Cnidaria
    • (c) Platyhelminthes
    • (d) Echinodermata
    उत्तर देखें

    उत्तर: (b)

77. 77. PCR cycle is also known as

    • (a) C₂ cycle
    • (b) C₃ cycle
    • (c) Kreb cycle
    • (d) EMP pathway
    उत्तर देखें

    उत्तर: (b)

78. 78. Plastids that synthesize and store fat are

    • (a) Eoplasts
    • (b) Etioplasts
    • (c) Elaioplasts
    • (d) Gerontoplasts
    उत्तर देखें

    उत्तर: (c)

79. 79. The alkaloid reserpine is contained in the roots of

    • (a) Papaver somniferum
    • (b) Cinchona officinalis
    • (c) Rauvolfia serpentina
    • (d) All the above
    उत्तर देखें

    उत्तर: (c)

80. 80. In plants Agrobacterium rhizogenes causes

    • (a) Root Rot
    • (b) Root Proliferation
    • (c) Tumor Formation
    • (d) Nodule Formation
    उत्तर देखें

    उत्तर: (b)

81. 81. Milk protein Casein is coagulated by

    • (a) Pepsin
    • (b) Trypsin
    • (c) Rennin
    • (d) Renin
    उत्तर देखें

    उत्तर: (c)

82. 82. Plants with latex and unisexual Flowers are found in

    • (a) Ranunculaceae
    • (b) Rutaceae
    • (c) Amaranthaceae
    • (d) Euphorbiaceae
    उत्तर देखें

    उत्तर: (d)

83. 83. In bony fish, reptiles and birds the cleavage is

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

    उत्तर: (c)

84. 84. Smallpox is caused by

    • (a) Variola
    • (b) Coxiella
    • (c) Aedes
    • (d) Francissella
    उत्तर देखें

    उत्तर: (a)

85. 85. Vessels are found in

    • (a) Pinus
    • (b) Ephedra
    • (c) Cycas
    • (d) None of the above
    उत्तर देखें

    उत्तर: (b)

86. 86. Axolotl larva exhibits

    • (a) Neoteny only
    • (b) Paedogenesis only
    • (c) Both neoteny and paedogenesis
    • (d) Eutely
    उत्तर देखें

    उत्तर: (c)

87. 87. Which one is commonly called as Reindeer moss

    • (a) Cladonia rengiferina
    • (b) Funaria hygrometrica
    • (c) Sphagnum khasiana
    • (d) Sphagnum ceylonicum
    उत्तर देखें

    उत्तर: (a)

88. 88. Four kinds of skin colours are found in rabbits namely – albino, himalayan albino, agouti and chinchilla because a gene can have

    • (a) Incomplete dominance
    • (b) A pair of mutant isoalleles
    • (c) Less than two allelomorphs
    • (d) More than two allelomorphs
    उत्तर देखें

    उत्तर: (d)

89. 89. Which of the following process is related to soil formation ?

    • (a) Laterization
    • (b) Podosolization
    • (c) Gleization
    • (d) All of the above
    उत्तर देखें

    उत्तर: (d)

90. 90. Which statement is true ?

    • (a) In chordates, blood flows anteriorly in Dorsal Blood Vessels
    • (b) In chordates, blood flows posteriorly in Dorsal Blood Vessels
    • (c) In invertebrates, blood flows posteriorly in Dorsal Blood Vessels
    • (d) None of the above
    उत्तर देखें

    उत्तर: (b)

91. 91. In the region of sarcomere where the actin and myosin filaments overlap, which of the following number of actin filaments surrounds each myosin filament ?

    • (a) 3
    • (b) 6
    • (c) 9
    • (d) 12
    उत्तर देखें

    उत्तर: (b)

92. 92. In gram-negative bacteria the basal body consists of a central core equipped with

    • (a) L and P rings on inner side
    • (b) M and S rings on outer side
    • (c) L and P rings on outer side and S and M rings on inner side
    • (d) L and P rings on inner side and S and M rings on outer side
    उत्तर देखें

    उत्तर: (c)

93. 93. Ventricular systole is stimulated by

    • (a) SA Node
    • (b) AV Node
    • (c) Pulmonary valve
    • (d) AV aperture
    उत्तर देखें

    उत्तर: (b)

94. 94. In philadelphia chromosome, the translocation occurs between chromosomes

    • (a) 9 and 22
    • (b) 7 and 17
    • (c) 10 and 21
    • (d) 6 and 16
    उत्तर देखें

    उत्तर: (a)

95. 95. Placenta in mammal is formed by

    • (a) Allantois
    • (b) Amnion
    • (c) Chorion
    • (d) Both (A) and (C)
    उत्तर देखें

    उत्तर: (c)

96. 96. Inner ear of Agnatha have only

    • (a) One semicircular canal
    • (b) Two semicircular canal
    • (c) Three semicircular canal
    • (d) None of these
    उत्तर देखें

    उत्तर: —

97. 97. Father of Indian Plant Embryology is

    • (a) Prof. Birbal Sahni
    • (b) Prof. R. P. Roy
    • (c) Prof. M. O. P. Iyengar
    • (d) Prof. Panchanan Maheshwari
    उत्तर देखें

    उत्तर: (d)

98. 98. What is common between earthworm, leech and centipedes ?

    • (a) They have malpighian tubules
    • (b) They have ventral nerve cord
    • (c) They are hermaphrodite
    • (d) They have no legs
    उत्तर देखें

    उत्तर: (b)

99. 99. Which one is not a larval stage of star fish ?

    • (a) Planula
    • (b) Dipleurula
    • (c) Bipinnaria
    • (d) Brachiolaria
    उत्तर देखें

    उत्तर: (a)

100. 100. Match List – I with List – II and select the correct answer using the codes given below : List-I (Threatened categories) a. Endangered (E) b. Vulnerable (V) c. Rare (R) d. Out of danger (O) List-II (Representation in Red data book) 1. White sheets 2. Amber sheets 3. Green sheets 4. Red sheets Codes :

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

     उत्तर: (a)

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

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

     उत्तर: (b)

102. 102. Apoplast-symplast concept was given by

     • (a) E. Munch
     • (b) Rabinowitch
     • (c) Zelitch
     • (d) Bose
     उत्तर देखें

     उत्तर: (a)

103. 103. Androgynophore is present in

     • (a) Cleome gynandra
     • (b) Mussaenda frondosa
     • (c) Ravenala madagascarlensis
     • (d) None of the above
     उत्तर देखें

     उत्तर: (a)

104. 104. In which, adaptation to aquatic life is secondary ?

     • (a) Whales
     • (b) Seals
     • (c) Porpoises
     • (d) All of the above
     उत्तर देखें

     उत्तर: (d)

105. 105. Which one of the following foetal membranes functions as embryonic urinary bladder ?

     • (a) Allantois
     • (b) Yolk sac
     • (c) Amnion
     • (d) Chorion
     उत्तर देखें

     उत्तर: (a)

106. 106. Nucleus is absent in

     • (a) Sieve tubes
     • (b) Companian cells
     • (c) Phloem parenchyma
     • (d) None of the above
     उत्तर देखें

     उत्तर: (a)

107. 107. In invertebrates, the haemoglobin is present in

     • (a) Erythrocytes
     • (b) Leucocytes
     • (c) Blood plasma
     • (d) Thrombocytes
     उत्तर देखें

     उत्तर: (c)

108. 108. Exogenous poisons are those that

     • (a) enter the organism from outer environment
     • (b) work outside the body of the organism
     • (c) are produced by one organism and damage the other organism
     • (d) are produced inside the body fluid
     उत्तर देखें

     उत्तर: (a)

109. 109. Longest cell of plant kingdom is found in

     • (a) Ephedra
     • (b) Chara
     • (c) Ectocarpus
     • (d) Marchantia
     उत्तर देखें

     उत्तर: (b)

110. 110. Find the odd man out.

     • (a) LD₅₀
     • (b) LC₅₀
     • (c) EC₅₀
     • (d) LE₅₀
     उत्तर देखें

     उत्तर: (d)

111. 111. In which species of chlamydomonas the cells of palmella stage develop haematochrome and become non-motile thick walled hypnospores

     • (a) C. caudata
     • (b) C. eugametos
     • (c) C. kleinii
     • (d) C. nivalis
     उत्तर देखें

     उत्तर: (d)

112. 112. Capitulum inflorescence is found in

     • (a) Ageratum
     • (b) Hibiscus
     • (c) Cicer
     • (d) Plumeria
     उत्तर देखें

     उत्तर: (a)

113. 113. RL model of DNA was suggested by

     • (a) M. H. F. Wilkins
     • (b) H.G. Khorana
     • (c) Sasisekharan
     • (d) Chargaff
     उत्तर देखें

     उत्तर: (c)

114. 114. Which one is called a birth hormone ?

     • (a) Vasopressin
     • (b) Pancreozymin
     • (c) Oxitocin
     • (d) Progesteron
     उत्तर देखें

     उत्तर: (c)

115. 115. In which of the following family C₃, C₄ and CAM plant species are found ?

     • (a) Crassulaceae
     • (b) Cactaceae
     • (c) Poaceae
     • (d) Euphorbiaceae
     उत्तर देखें

     उत्तर: (d)

116. 116. Which of the following diseases is caused by protozoa, bacteria and virus in that sequence ?

     • (a) Malaria, mumps and typhus
     • (b) Amoebiasis, polio and tetanus
     • (c) Sleeping sickness, Diphtheria and Hepatitis B
     • (d) Yellow fever, syphilis and influenza
     उत्तर देखें

     उत्तर: (c)

117. 117. Mitochondrial DNA of human cells is not

     • (a) Naked
     • (b) Double-stranded
     • (c) Circular
     • (d) Of paternal origin
     उत्तर देखें

     उत्तर: (d)

118. 118. In which genus seta elongates upto 50 mm and becomes almost transparent at maturity ?

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

     उत्तर: (b)

119. 119. Which of the following glycosidic bond is found in sucrose ?

     • (a) α1 – 4
     • (b) β1 – 4
     • (c) α1 – β2
     • (d) α1 – 6
     उत्तर देखें

     उत्तर: (c)

120. 120. Which of the following represents the probability, P of an event which is certain ?

     • (a) P = 1
     • (b) P = 10
     • (c) P = 50
     • (d) P = 100
     उत्तर देखें

     उत्तर: (a)

121. 121. The developing fruit of Cocos nucifera contains milky fluid. It is

     • (a) Nuclear endosperm
     • (b) Liquid syncytium
     • (c) Solution of unknown morphological nature
     • (d) Both (A) and (B) are correct
     उत्तर देखें

     उत्तर: (d)

122. 122. One Haemoglobin (Hb) molecule carries

     • (a) 4 molecules of O₂
     • (b) 3 molecules of O₂
     • (c) 2 molecules of O₂
     • (d) 1 molecule of O₂
     उत्तर देखें

     उत्तर: (a)

123. 123. The process of determination of the sequence of genes on a chromosome is termed

     • (a) Gene localization
     • (b) Gene sequencing
     • (c) Chromosomal mapping
     • (d) DNA sequencing
     उत्तर देखें

     उत्तर: (c)

124. 124. Double circulation of blood in mammals refer to

     • (a) Paired arteries
     • (b) Paired veins
     • (c) The blood circulates twice in heart as quickly
     • (d) The process is completed in two turns, one from heart to lung and back to the rest of body from heart
     उत्तर देखें

     उत्तर: (d)

125. 125. The food chain that starts from plants and goes from smaller to larger animals is

     • (a) Detritus food chain
     • (b) Parasitic food chain
     • (c) Predator food chain
     • (d) Saprophytic food chain
     उत्तर देखें

     उत्तर: (c)