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Question 1 of 180
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Question 45 of 180
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Question 46 of 180
46. Question
46.Which of the following graphs correspond to one node?
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Question 47 of 180
47. Question
47.
The rate of decay of a radioactive sample is given by R1 at time t1, and R2 at a later time t2. The mean life of this radioactive sample is
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Question 48 of 180
48. Question
48.
Which of the following arrangements correctly represent a decreasing order of bond angles?
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Question 49 of 180
49. Question
49.
A volume V of a gas at a temperature T1 and a pressure p is enclosed in a sphere. It is connected to another sphere of volume V/2 by a tube and stopcock. The second sphere is initially evacuated and the stopcock is closed. If the stopcock is opened the temperature of the gas in the second sphere becomes T2. The first sphere is maintained at a temperature T1. What is the final pressure p1 within the apparatus?
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Question 50 of 180
50. Question
50.
X and Y are two elements which form X2Y3 and X3Y4. If 0.20 mol of X2Y3 weighs 32.0 g and 0.4 mol of X3Y4 weighs 92.8 g, the atomic weights of X and Y are respectively
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Question 51 of 180
51. Question
51.
1 L of an acidified solution containing 31.6 g of KMnO4 is decolourized by passing SO2 through it. How much iron pyrites (FeS2) has to be roasted to produce the necessary amount of SO2 (K = 39, Mn = 55, S = 32, Fe = 56)?
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Question 52 of 180
52. Question
52.
Calculate the radius of a capillary tube if water rises to a height of 12.5 cm within it, assuming the angle of contact between water and glass to be 0° (g = 10 m s–2 , r = 1 ´ 103 kg m–3 ).
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Question 53 of 180
53. Question
53.
What will be the value of the equivalent weight of KBrO3 in the following ionic equation?
2BrO3– + 12H+ + 10e ->Br2 + 6H2O
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Question 54 of 180
54. Question
54.Which of the following is the most basic towards B(CH3)3
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Question 55 of 180
55. Question
55. Equal volumes of 0.50 M HCl, 0.25 M NaOH and 2.75 M NaCl are mixed. The molarity of the NaCl solution is
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Question 56 of 180
56. Question
56. Consider an ideal gas that occupies 2.50 dm3 at a pressure of 3.00 bar. If the gas is compressed isothermally at a constant pressure pext , so that the final volume is 0.500 dm3, calculate the smallest possible value of pext and the work done using pext.
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Question 57 of 180
57. Question
57. Kc for the reaction A(g) + B(g) ≒ 2C(g) is 3.0 at 400 K. In an experiment a mol of A is mixed with 3 mol of B in a 1-L vessel. At equilibrium 3 mol of C is formed. The value of a will be
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Question 58 of 180
58. Question
58. A drop of a solution (volume = 0.05 mL) contains 6 ´ 10-7 mol of H+ . If the rate of disappearance of H+ is 6.0 ´ 105 mol L-1 s-1 , how long will it take for the H+ in the drop to disappear?
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Question 59 of 180
59. Question
59. An acid-base indicator has a Ka = 1.0 ´ 10-5 . The acid form of the indicator is red and the basic form is blue. Calculate the pH change required to change the colour of the indicator from 80% red to 80% blue.
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Question 60 of 180
60. Question
60.Calculate the useful work done during the reaction
Ag(s)+ 1/2 Cl2(g) -> AgCl(s)
given that E^0Cl2/Cl- =+1.36 V and E^0AgCl, Ag, Cl^- =+0.220 V if pCl2 = 1 and T = 298 K.CorrectIncorrect -
Question 61 of 180
61. Question
61.Consider the following graph pertaining to distillation
The distillate-to-residue ratio is
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Question 62 of 180
62. Question
62.Consider the following FCC unit cells choose the correct option
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Question 63 of 180
63. Question
63. Which of the following statements is incorrect?
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Question 64 of 180
64. Question
64. Which of the following is arranged in order of increasing radius?
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Question 65 of 180
65. Question
65.The ionization constant of protium in water (H2O ≒ H( ( OH( ( is 1.0 ( 10(14 and that in heavy water (D2O ≒ D( ( OD( ( is 3(0 ( 10(15 . H2O dissociates about
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Question 66 of 180
66. Question
66. Hydrides as well as halides of which alkaline earth metals tend to polymerize
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Question 67 of 180
67. Question
67. B2H6 reacts with (CH3)3N to produce
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Question 68 of 180
68. Question
68. CO32- and SO32- can be distinguished from each other by the production of CO2 and SO2 respectively upon using
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Question 69 of 180
69. Question
69.Which of the following structures correctly represents the resonance hybrid of N2O4?
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Question 70 of 180
70. Question
70. Which of the following statements is correct?
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Question 71 of 180
71. Question
71. In the absence of a catalyst, KClO3 undergoes a disproportionation reaction to form
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Question 72 of 180
72. Question
72. XeO4 contains
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Question 73 of 180
73. Question
73. AgCl is insoluble in water but readily soluble in a dilute ammonia solution because
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Question 74 of 180
74. Question
74.A mixed oxide of iron, Fe3O4, is represented by
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Question 75 of 180
75. Question
75. The hybridization states of the central atoms in the complexes Fe(CN)63^- , Fe(CN)64^- and Co(NO2)63^- are
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Question 76 of 180
76. Question
76. Which among the following pairs of complex compounds is an example of linkage isomerism?
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Question 77 of 180
77. Question
77. Match the following
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Question 78 of 180
78. Question
78. Which of the following compounds is named incorrectly?
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Question 79 of 180
79. Question
79.
The major product obtained in the reaction is
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Question 80 of 180
80. Question
80.The final product (III) obtained in the sequence of reactions is
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Question 81 of 180
81. Question
81.Arrange the compounds in order of increasing carbon-carbon single-bond length CH2=CH—CH3 (I), CH2=CH—CH=CH2 (II), HC≡C—CH=CH2 (III) and HC≡C—C≡CH (IV).
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Question 82 of 180
82. Question
82.
How many among the following structures are aromatic?
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Question 83 of 180
83. Question
83. Which of the following will be obtained by the bromination of ethylbenzene in the presence of light?
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Question 84 of 180
84. Question
84.By which of the following reagents can the following conversion be affected
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Question 85 of 180
85. Question
85.The product obtained in the reaction
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Question 86 of 180
86. Question
86. Give the order of ease of the esterification of the following acids.
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Question 87 of 180
87. Question
87. Arrange p-toluidine (I), N,N-dimethyl-p-toluidine (II), p-nitroaniline (III) and aniline (IV) in order of decreasing basicity.
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Question 88 of 180
88. Question
88. On oxidation with HNO3, a carbohydrate (C6H12O6) gives a mixture of glycolic acid and tartaric acid.
The carbohydrate can be
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Question 89 of 180
89. Question
89. Nylon-6,6 is so named because it is a polyamide, formed from a
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Question 90 of 180
90. Question
90.The product obtained in the reaction
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Question 91 of 180
91. Question
91.In the organism Mangifera indica, Sapindales is the
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Question 92 of 180
92. Question
92.Information of any one taxon can be derived from
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Question 93 of 180
93. Question
93.Chordata represents ____________ taxonomic category of Man
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Question 94 of 180
94. Question
94.Trypanosoma possesses
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Question 95 of 180
95. Question
95.Which of the following is Incorrect?
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Question 96 of 180
96. Question
96.Agaricus, Ustilago, Puccinia are all
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Question 97 of 180
97. Question
97.Identify the labelled portion in the following diagram
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Question 98 of 180
98. Question
98.Capsid is actually a
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Question 99 of 180
99. Question
99.Cr-Jacob disease is analogous to
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Question 100 of 180
100. Question
100.Statement-1: Certain marine brown and red bryophytes produce large amounts of hydrocolloids.
Statement-2: They produce biflagellate antherozoids.
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Question 101 of 180
101. Question
101.The fuel peat is formed from
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Question 102 of 180
102. Question
102.Selaginella is classified into ___________ class of pteridophytes
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Question 103 of 180
103. Question
103.In angiosperms each embryo-sac has
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Question 104 of 180
104. Question
104.Diploid sporophytes are dominant in the following organisms
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Question 105 of 180
105. Question
105.The common pattern shown in Plum, Rose and Peach, that is they are
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Question 106 of 180
106. Question
106.Identify the placentation type in the following diagram
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Question 107 of 180
107. Question
107.The fibrous part of coconut is
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Question 108 of 180
108. Question
108.The short axis of a monocotyledonous seed possesses
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Question 109 of 180
109. Question
109.Epipetalous androcium is common in
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Question 110 of 180
110. Question
110.Name the plant from the given floral formula
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Question 111 of 180
111. Question
111.Find out the correct option
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Question 112 of 180
112. Question
112.Which of the following meristems is responsible for extrastelar secondary growth in dicotyledonous stem
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Question 113 of 180
113. Question
113.Polyarch vascular bundles generally occur in
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Question 114 of 180
114. Question
114.The cisternae of Golgi bodies are about
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Question 115 of 180
115. Question
115.Xanthophyll can be dissolved completely into
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Question 116 of 180
116. Question
116.The ribosomes of chloroplasts present in the
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Question 117 of 180
117. Question
117.Identify following parts in the given diagram
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Question 118 of 180
118. Question
118.Select the correct option
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Question 119 of 180
119. Question
119.To study any kind of genetic abnormality arising due to change is chromosome number, karyotype is prepared. Which of the following stages are the most suitable to develop a karyotype?
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Question 120 of 180
120. Question
120.Meiosis is evolutionary significant because it results in
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Question 121 of 180
121. Question
121.When does a chromosome appear best to observe shape, size and number of chromosomes?
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Question 122 of 180
122. Question
122.Find the odd one with reference to the factors affecting transpiration
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Question 123 of 180
123. Question
123.All are true except
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Question 124 of 180
124. Question
124.The reduced percentage of dry weight of tissues caused by reduced mineral ions considered toxic is
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Question 125 of 180
125. Question
125.The technique hydroponics was demonstrated by
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Question 126 of 180
126. Question
126.Match the column
Column –I Column-II
A. Oxygen evolving complex 1.Ribulose bis phosphate
B. Proton gradient 2. High oxygen concentration
C. Calvin cycle 3.ATP synthesis
D.Photorespiration 4.Pheophytin
5. Protolysis of water
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Question 127 of 180
127. Question
127.Which one of the following is complex V of the ETS?
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Question 128 of 180
128. Question
128.Plant hormone used in brewing industry in malting process
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Question 129 of 180
129. Question
129.Identify the part of the organism in the given diagram
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Question 130 of 180
130. Question
130.In order to obtain a virus-free plants through tissue culture, the best method is
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Question 131 of 180
131. Question
131.Citric acid can be produced in industry from
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Question 132 of 180
132. Question
132.Which one of the following is not a major abiotic factor?
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Question 133 of 180
133. Question
133.The gradual and fairly predictable change in the species composition of a given area is called
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Question 134 of 180
134. Question
134.Presently many marine fish populations around the world are over harvested, endangering the continued existence of some commercially important species-this is a typical example of
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Question 135 of 180
135. Question
135. pollutants from man’s activities like effluents from the industries and homes can radically accelerate the aging process in a lake, the phenomenon is known as
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Question 136 of 180
136. Question
136.Offspring of Cyclostomata are called
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Question 137 of 180
137. Question
137.Which is common among the following group of animals
Exocoetus, Clarias, Pterophyllum, Hippocampus
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Question 138 of 180
138. Question
138.Ascaris is characterised by
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Question 139 of 180
139. Question
139.Polyp and medusa are the part of following organisms
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Question 140 of 180
140. Question
140.The fertilisation process of Bombyx is usually
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Question 141 of 180
141. Question
141.The tissue which have a free surface is
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Question 142 of 180
142. Question
142.Identify the labelled parts in the given diagram
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Question 143 of 180
143. Question
143.Blood from sinuses enter heart through __________in cockroach
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Question 144 of 180
144. Question
144.Ootheca contains
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Question 145 of 180
145. Question
145.If a tissue is treated with heat, the ash will contain
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Question 146 of 180
146. Question
146.Name the following amino acid
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Question 147 of 180
147. Question
147.All are secondary metabolites except
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Question 148 of 180
148. Question
148._______________enables glucose transport into cells
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Question 149 of 180
149. Question
149.Blood concentration of glucose in a normal healthy individual is
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Question 150 of 180
150. Question
150.Pulp cavity of teeth is lined by
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Question 151 of 180
151. Question
151.Cardiac glands are present in
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Question 152 of 180
152. Question
152.Succus entericus contains all except
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Question 153 of 180
153. Question
153.Peptones are catalysed by _______ to form dipeptides
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Question 154 of 180
154. Question
154.Total lung capacity is
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Question 155 of 180
155. Question
155.Respiratory rhythm centre is present in
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Question 156 of 180
156. Question
156.A symptom of acute chest pain common in both man and woman is called
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Question 157 of 180
157. Question
157.Juxta medullary nephrons have
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Question 158 of 180
158. Question
158.JGA region is formed by
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Question 159 of 180
159. Question
159.Collecting Duct shows selective secretion of
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Question 160 of 180
160. Question
160.About ________ per cent of the body weight of a human adult is contributed by muscles
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Question 161 of 180
161. Question
161.The anisotropic band contains
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Question 162 of 180
162. Question
162.Name the labelled parts in the given diagram
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Question 163 of 180
163. Question
163.The neurotransmitter which initiates action potential in sarcolemma is
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Question 164 of 180
164. Question
164.Hyoid is present in
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Question 165 of 180
165. Question
165.Each limb is made of __________ bones
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Question 166 of 180
166. Question
166.Decreased levels of estrogen is a common cause of
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Question 167 of 180
167. Question
167.Parthenogenesis is found in
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Question 168 of 180
168. Question
168.Extra embryonic membranes of mammalian embryo are derived from
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Question 169 of 180
169. Question
169.Which of the following gland is homologous to Bartholin ’s gland and helps in lubrication of penis
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Question 170 of 180
170. Question
170.The oral contraceptive pill Saheli contains
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Question 171 of 180
171. Question
171.Multiple alleles are present
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Question 172 of 180
172. Question
172.Haploids are able to express both recessive and dominant alleles/mutations because there are
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Question 173 of 180
173. Question
173.Which one of the following Mendelian diseases is an example of X-linked recessive disorder
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Question 174 of 180
174. Question
174.Statement-1: 5’à3’ strand does not code anything but all the reference point while defining a transcription unit is made with coding strand.
Satement-2: By switching its position with terminator, the definition of coding and template strands could be reversed
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Question 175 of 180
175. Question
175.Identify ‘A’ and the process going on
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Question 176 of 180
176. Question
176. Which option is Correct regarding the following grph of natural selection on different traits
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Question 177 of 180
177. Question
177.Identify the ‘Q’ in the given diagram
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Question 178 of 180
178. Question
178.Recombinant colonies are identified for
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Question 179 of 180
179. Question
179.Nematode-specific genes were introduced into the host plant by
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Question 180 of 180
180. Question
180.In 1997, the first transgenic cow, Rosie, produced human protein-enriched milk (2.4 grams per litre). The milk contained the human ___________ and was nutritionally a more balanced product for human babies than natural cow-milk.
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