61. The correct sequence of stages in cell cycle is:
(A) G1, S, G2, M
(B) G1, G2, S, M
(C) M, S, G1, G2
(D) G2, G1, M, S
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62. Which of the following compound shows cis-trans isomerism ?
(A) CH2 = CBr2
(B) (CH3)2 C = CH – C2H5
(C) CIHC = CHCI
(D) CH2 = CH – CH2 – CH3
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63. Which of the following is an egg laying mammal ?
(A) Tachyglossus
(B) Kangaroo
(C) Talpa
(D) Hedgehog
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64. Smallest bone in human body is :
(A) Incus
(B) Malleys
(C) Stapes
(D) Lacrimal
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65. Magnetic quantum number determines :
(A) Shape of orbitals
(B) Spin of an electron
(C) Total energy of orbitals
(D) Orientation of orbitals
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66. Who was the writer of ‘Systema Natureae’?
(A) Ernst Haeckel
(B) Robert Whittaker
(C) Carolus Linnaeus
(D) Carl Bose
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67. If a DNA sample has 31% adenine, what will be the percentage of guanine in that sample ?
(A) 31%
(B) 69%
(C) 19%
(D) 38%
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68. Which of the following statement about benzaldehyde is not correct ?
(A) It undergoes Aldol condensation
(B) It reduces Tollen’s reagent
(C) It forms addition compound with sodium bisulphite
(D) It undergoes Cannizzaro’s reaction
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69. The excretory organ in cockroach, earthworm and human is respectively :
(A) Skin, Malpighian tubules, Kidney
(B) Malpighian tubules, Nephridia, Kidney
(C) Nephridia, Malpighian tubules, Kidney
(D) Nephridia, Kidney, Green gland
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70. The zoological name of Indian Honey-bee is :
(A) Pieris brassical
(B) Periplanata indiana
(C) Apis indica
(D) None of the above
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71. BO3 units in Orthoboric acid are bonded by:
(A) Hydrogen bond
(B) Covalent bond
(C) Electrovalent bond
(D) Co-ordinate bond
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72. Which one of the following type of organisms occupy more than one trophic level in a pond ecosystem?
(A) Benthos
(B) Zooplankton
(C) Phytoplankton
(D) Frog
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73. Kokichi Mikimoto known as:
(A) Father of Pearl Industry
(B) Father of Ethology
(C) Father of Archaeology
(D) Discoverer of Bee Language
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74. Resonance in benzene arises due to :
(A) Rearrangement of carbon atoms
(B) Delocalisation of Ti-electrons
(C) sp3-Hybridization
(D) Delocalisation of -electros
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75. Cryopreservation of germplasm is :
(A) At 0°C
(B) From -50°C to -150°C
(C) At-300°C
(D) At -196°C
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76. According to crick, monodirectional flow of information is known as:
(A) Gene expression
(B) D.N.A. synthesis
(C) Central Dogma
(D) Wobble Hypthesis
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77. The conjugate acid of NH–2 is :
(A) NH4+
(B) NH3
(C) NH2OH
(D) N3H4
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78. Parachute dispersal is found in:
(A) Calendula
(B) Xenia
(C) Helianthus
(D) Taraxacum
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79. Agar-agar is obtained from:
(A) Sargassum
(B) Laminaria
(C) Ulva
(D) Gelidium
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80. The amount of electricity that can deposit 108 gram of silver from silver nitrate solution is :
(A) 1 Ampere
(B) 1 Coulomb
(C) 1 Faraday
(D) 2 Ampere
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