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
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
63. Which of the following is an egg laying mammal ?
(A) Tachyglossus
(B) Kangaroo
(C) Talpa
(D) Hedgehog
64. Smallest bone in human body is :
(A) Incus
(B) Malleys
(C) Stapes
(D) Lacrimal
65. Magnetic quantum number determines :
(A) Shape of orbitals
(B) Spin of an electron
(C) Total energy of orbitals
(D) Orientation of orbitals
66. Who was the writer of ‘Systema Natureae’?
(A) Ernst Haeckel
(B) Robert Whittaker
(C) Carolus Linnaeus
(D) Carl Bose
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%
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
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
70. The zoological name of Indian Honey-bee is :
(A) Pieris brassical
(B) Periplanata indiana
(C) Apis indica
(D) None of the above
71. BO3 units in Orthoboric acid are bonded by:
(A) Hydrogen bond
(B) Covalent bond
(C) Electrovalent bond
(D) Co-ordinate bond
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
73. Kokichi Mikimoto known as:
(A) Father of Pearl Industry
(B) Father of Ethology
(C) Father of Archaeology
(D) Discoverer of Bee Language
74. Resonance in benzene arises due to :
(A) Rearrangement of carbon atoms
(B) Delocalisation of Ti-electrons
(C) sp3-Hybridization
(D) Delocalisation of -electros
75. Cryopreservation of germplasm is :
(A) At 0°C
(B) From -50°C to -150°C
(C) At-300°C
(D) At -196°C
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
77. The conjugate acid of NH–2 is :
(A) NH4+
(B) NH3
(C) NH2OH
(D) N3H4
78. Parachute dispersal is found in:
(A) Calendula
(B) Xenia
(C) Helianthus
(D) Taraxacum
79. Agar-agar is obtained from:
(A) Sargassum
(B) Laminaria
(C) Ulva
(D) Gelidium
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
Leave a Reply