(a) Leaves, fl owers, fruits etc. arise in orderly pattern
(b) Increase in girth
(c) Falling of leaves and fruits
(d) All
2. Development consists of
(a) growth (b) diff erentiation (c) both (d) None
3. Which of the following is correct about the development of a mature plant from a zygote?
(a) Follows a precise and ordered succession of events
(b) Only diff erentiation occurs
(c) Occurs due to environmental eff ect only
(d) None
4. What kinds of factors govern a plant’s developmental process?
(a) Intrinsic factors (b) Extrinsic factors (c) Both (d) None
5. All cells of the plants are descendents of
(a) Zygote (b) Seeds (c) gametes (d) Both (b) and (c)
6. Appearance and fall of fruits occurs due to
(a) hormonal infl uence (b) growth and development
(c) diff erentiation (d) Both (a) and (b)
7. Which is one of the most fundamental and conspicuous characteristic of living being?
(a) Development (b) Diff erentiation (c) Maturation (d) Growth
8. What is an irreversible permanent increase in size of an organ or its part or even of an indi-
vidual cell?
(a) Development (b) Diff erentiation (c) Growth (d) Maturation
9. Growth is accompanied by
(a) Anabolism (b) Catabolism (c) Both (d) None
10. Metabolism occurs on the expense of
(a) nutrition (b) water (c) energy (d) hormones
11. If expansion of leaf occurs, it is known as
(a) swelling (b) imbibitions (c) diff erentiation (d) growth
12. Why the growth of a plant is unique?
(a) The plant retains the capacity of unlimited growth
(b) The plant can regenerate the same characters
(c) There is no change in off spring’s characters
(d) None
13. The unique ability to retain the capacity of growth in plants is due to presence of
(a) lifetime diff erentiation
(b) activator hormones
(c) chlorophyll to utilize energy lifetime
(d) meristems at certain locations
14. What is the special feature of meristem?
(a) Its present in every tissue (b) Its capacity to divide
(c) Its capacity to self perpetuate (d) Both (b) and (c)
15. Cells that further make up the plant body ________ .
(a) loose capacity to divide (b) loose capacity to grow
(c) loose capacity to diff erentiate (d) None
16. Continued growth due to activity of meristem is which type of growth?
(a) Closed growth (b) Intranets growth (c) Both (a) and (b) (d) Open growth
17. Meristems are found in
(a) root apex (b) shoot apex (c) both (d) none
18. Meristems are responsible for ________
(a) secondary growth (b) primary growth (c) both (d) none
19. What is the contribution of meristem in growth of plant?
(a) Elongation along the axis
(b) Diff erentiation
(c) Both (a) and (b)
(d) None
20. Secondary growth of plant occurs due to ________
(a) lateral meristems (b) vascular cambium
(c) cork cambium (d) all
21. At cellular level, growth is an
(a) increase in cytoplasm (b) increase in size
(c) increase in nuclear size (d) increase in protoplasm
22. Which of the following is not the parameter for measuring growth?
(a) Wet weight (b) Dry weight (c) Volume (d) Cell member
23. One single maize root apical meristem can give rise to how many cells per hour?
(a) 17500 (b) >17500 (c) <17500 (d) None
24. By how many times, cells of watermelon increase in size?
(a) 3,15,000 (b) 3,50,000 (c) 3,25,000 (d) 3,17,000
25. In former and latter, respectively growth can be expressed as increase in cell.
(a) Size, member (b) Volume, size (c) Member, size (d) Size, volume
26. Growth of pollen tube is measured in terms of
(a) weight (b) width (c) volume (d) length
27. Growth of a dorsiventral leaf can be measured in terms of ________
(a) length (b) width (c) volume of cells (d) surface area
28. Which of the following are phases of growth?
(a) Meristemation (b) Elongation (c) Maturation (d) All
30. Which of the following represent meristematic phase of growth?
(a) Root apex (b) Shoot apex (c) Both (d) None
31. Which of the following are characteristics of the cells in meristematic region?
(a) Rich in protoplasm (b) Large nuclei
(c) Thin plasma membrane (d) Both (a) and (b)
32. Which of the following is not the characteristics of cell wall of meristematic cells?
(a) Primary in nature (b) Cellulosic
(c) Abundant plasmodesmata (d) None
33. Where can we fi nd cells representing phases of elongation?
(a) Root Apex (b) Shoot Apex
(c) Cells proximal to both (d) All
34. Which of the following is not the characteristic of the cells in elongation phase?
(a) Cell enlargement (b) New cell wall deposition
(c) Decrease in volume (d) Both (a) and (b)
35. Cells proximal to phase of elongation show ________ .
(a) meristematic phase (b) maturative phase
(c) elongation phase (d) all
37. Cells of maturative phase show
(a) thickening of walls (b) protoplasmic modifi cation
(c) both (d) none
38. Increased growth per unit time is called
(a) growth rate (b) growth speed (c) both (d) none
39. The growth rate shows an increase that can be
(a) mathematical (b) arithmetic (c) geometrical (d) both (b) and (c)
40. In arithmetic growth, other than daughter cells, what happens to the other cells?
(a) They undergo maturation
(b) They undergo diff erentiation
(c) Both (b) and (c)
(d) They undergo continuous cell division
41. Examples of arithmetic growth is/are
(a) root elongation (b) increase in girth (c) both (d) none
42. Slow initial growth is called
(a) log phase (b) lag phase (c) exponential phase (d) none
43. Rapidly increase in growth after show initial period is called
(a) log phase (b) leg phase (c) both (d) none
44. What is the speciality of the cells after mitotic cell division in geometric growth?
(a) Thickened cell wall (b) Occurring of well organised growth
(c) Retaining the ability to divide (d) None
45. Stationary phase occurs due to
(a) Increase in distance (b) Limited nutrient supply
(c) Thickening of cell wall (d) None
46. Geometrical growth graphically shows
(a) linear curve (b) sigmoid curve (c) both one by one (d) straight line
47. Living organism growing in a natural environment can be found graphically by presence of
(a) sigmoid curve (b) linear curve (c) straight line (d) all
48. Sigmoid curve is typical for which components of plant body?
(a) Cells (b) tissue (c) Organs (d) All
49. Exponential growth can be expressed as
(a) W1 = W0
ert (b) W0 = W1
ert (c) W1 = W0
eΔrt (d) None
50. In the expression of exponential growth ‘e’ stands for
(a) exponential growth rate (b) base of natural log
(c) relative growth rate (d) change in size
51. In expression of exponential growth ‘r’ is referred to as
(a) growth rate (b) effi ciency index
(c) both (d) relative growth rate
52. Final size i.e., W1
depends principally on
(a) W0
(b) r (c) t (d) e
53. Quantitative comparisons can be made by
(a) absolute growth rate (b) relative growth rate
(c) both (d) none
54. Measurement and comparison of total growth upper unit time is called
(a) absolute growth rate (b) relative growth rate
(c) both (d) none
55. The growth of the given system per unit time is expressed on a common basis or per unit initial
parameter is known as
(a) absolute growth rate (b) relative growth rate
(c) both (d) none
54. Which of the following are not essential elements for growth?
(a) Water (b) Oxygen (c) Both (d) None
57. Cell enlargement requires mainly
(a) oxygen (b) water (c) nutrients (d) none
58. Extension of growth is supported by
(a) oxygen (b) turgidity (c) osmosis (d) imbibitions
59. Plant growth and further development is intimately linked to
(a) oxygen requirement (b) maintains temperature
(c) water status (d) none
60. How does water help enzymatic activities needed for growth?
(a) Water maintains pH (b) Water maintains temperature
(c) Water provides ions (d) Water provides medium
61. What helps in releasing metabolic energy essential for growth activities?
(a) Oxygen (b) Water (c) Nutrients (d) None
62. What are required for synthesis of protoplasm and act as source of energy?
(a) Oxygen (b) Micronutrients (c) Macronutrients (d) Both (b) and (c)
63. What can aff ect phases/stages of growth?
(a) temperature (b) light (c) gravity (d) all
64. The process of derivation of cells from meristems and maturation to perform specifi c function
is known as ________
(a) regeneration (b) dediff erentiation (c) dediff erentiation (d) diff erentiation
65. During diff erentiation, what kind of changes take place?
(a) Structural (b) Functional (c) Both (d) None
66. What changes would occur in a cell to form a treachery element?
(a) Loose their protoplasm
(b) Strong, elastic, lignocelluloses secondary cell wale
(c) Both
(d) None
67. What is the phenomenon of de-diff erentiation?
(a) Regaining the capacity to divide (b) Loosing the capacity to divide
(c) Loosing capacity to divide after regaining (d) All
68. What is re-diff erentiation?
(a) regaining the capacity to divide
(b) loosing the capacity to divide
(c) loosing the capacity to divide after regaining
(d) all
70. What kind of diff erentiation is seen in plants?
(a) Open (b) close (c) primary (d) all
72. Cells positioned away from root apical meristems, diff erentiate as
(a) Epidermis (b) Root cap (c) Both (d) None
73. All those changes which an organism goes through during its life cycle from germination of
the seed to senescence is termed as
(a) growth (b) diff erentiation (c) development (d) none
74. On whose response plasts follow diff erent pathways to form diff erent kind of structures?
(a) Environment (b) Phases of life (c) Both (d) None
75. The ability of plants to follow diff erent pathways in response to environment or phases of life
to form diff erent kind of structures is called?
(a) Adaptation (b) diff erentiation (c) maturation (d) Plasticity
76. In which of the following plant the leaves of juvenile plant are diff erent in shape than those in
mature plants?
(a) Cotton (b) coriander (c) larkspur (d) all
77. Leaves of which plant show environmental heterophylly?
(a) Cotton (b) coriander (c) larkspur (d) Buttercup
78. The phenomenon of environmental heterophyll is also called
(a) Adaptation (b) Maturation (c) Plasticity (d) growth
79. What is the sum of growth and diff erentiation?
(a) plasticity (b) development (c) maturation (d) all
80. Development in plants is mainly controlled by ________
(a) intrinsic factor (b) extrinsic factor (c) both (d) none
81. Intrinsic sector for plant development includes
(a) Intercellular (b) Intracellular (c) Both (d) None
82. Intercellular in the former of plant development means ________
(a) chemical regulators (b) genetic
(c) both (d) none
83. Intracellular in the former of plant development means ________
(a) chemical regulators (b) genetic
(c) both (d) none
84. Extrinsic sector for plant development includes ________
(a) light (b) temperature (c) water (d) all
85. Nutrition is included in which phase of plant development?
(a) Former (b) Latter (c) Both (d) None
86. Oxygen is exchanged in which phase of plant development?
(a) Former (b) Latter (c) Both (d) None
87. Which of the following is not a characteristic of a PGR?
(a) They are large
(b) Simple molecules
(c) They are of diverse chemical composition
(d) None
88. Match the following for PGR.
Column I Column II
A. IAA – i. Caretenoids
B. Kinetin – ii. Terrenes
C. ABA – iii. In dole compounds
D. GA3 – iv. Adenine derivatives
(a) (A–iii) (B–iv) (C–i) (D–ii) (b) (A–i) (B–iii) (C–ii) (D–iv)
(c) (A–iv) (B–ii) (C–iii) (D–i) (d) (A–ii) (B–i) (C–iv) (D–iii)
89. N6
–Furfurylavmino purine is which derivative?
(a) In dole compounds (b) Adenine
(c) Terrines (d) carotenoids
90. How many of the following are phytohormones?
ABA, C2
H4
, IAA, GA3
, ABA
(a) 2 (b) 3 (c) 4 (d) 5
91. Which of the following is not a plant growth regulator?
(a) Auxins (b) Gibberellins (c) Ethylene (d) Abscissa acid
92. Who initiated the discovery of plant growth hormones?
(a) Charles Darwin (b) Francis Darwin (c) both (d) none
93. According to Charles Darwin, which plant would help in the discovery of PGH?
(a) Larkspur (b) Buttercup (c) Canary grass (d) All
94. Coleoptiles responded to ________
(a) light (b) water (c) touch (d) all
95. As a response to stimuli the coleoptiles caused ________
(a) bending (b) fl owering (c) budding (d) all
96. Auxins are discovered by
(a) Charles Darwin (b) Francis Darwin
(c) F. W. Went (d) Both (a) and (b)
97. Gabriella Fuji kuroi caused what disease in rice plants?
(a) Foolish seeding (b) Bikaner (c) Both (d) None
98. Who repotted that the symptoms reappeared in uninfected plants treated with sterile fi ltrate of
giberella fungus?
(a) E. Kurosaeva (b) F. Skoog (c) Both (d) None
99. Callus from which plant was observed by miller?
(a) Tomato (b) Tobacco (c) Rice plant (d) None
100. Addition of what to auxins in nutrients medium cause proliferation of callus?
(a) DNA (b) Yeast extract (c) Coconut milk (d) All
101. Who crystallized cytokinin?
(a) Skoog and miller (b) Charles Darwin (c) Both (a) and (b) (d) F. W. Went
102. Skoog and miller termed cytokinin as
(a) Cytokines is (b) kinetin (c) Both (d) None
103. Which three diff erent kinds of inhibitors were found in mid-1960s?
(a) Inhibitor–A, Abscission–II and dorm in
(b) Inhibitor–B, Abscission–II and dorm in
(c) Inhibitor–A, Abscission–III and dorm in
(d) Inhibitor–B, Abscission–III and dorm in
104. All individually found inhibitors in mid-1960s were later named
(a) Giber relic acid (b) Auxin (c) Abscissic acid (d) None
105. The volatile substance causing ripening of unripened bananas?
(a) Abscissic acid (b) Auxin (c) Ethylene (d) Terpenes
106. The only gaseous PGR is ________
(a) ABA (b) Kinetin (c) Terpenes (d) Ethylene
107. The Greek meaning of ‘Auxein’ is ________
(a) to fl ower (b) to seed (c) to grow (d) to enlarge
108. Auxin was fi rst isolated from ________
(a) frog’s wine (b) Zeatin (c) human wine (d) none
109. The name ‘Auxin’ was given to which chemical?
(a) Indole–3–acetic acid (b) Indole–6–acetic acid
(c) Indole–3–butyric acid (d) Indole–6–butyric acid
110. How many of the following auxins are obtained from plants?
IAA, IBA, NAA, 2, 4–D
(a) 1 (b) 2 (c) 3 (d) 4
111. NAA stands for ________.
(a) Nitro–acetic acid (b) Nitro aceto acetate
(c) Naphthalene acetic acid (d) Naphthaloaceto acetic acid
112. 2, 4–D stands for ________
(a) 2, 4–Dichlorophenoxy acetate (b) 2, 4–Dextrophenoxy acetate
(c) 2, 4–Diphosphenoxy acetate (d) 2, 4–Dichloromethoxy acetate
113. Synthetic auxins are extesively used in
(a) agriculture (b) horticulture (c) both (d) none
114. Natural auxins are extensively used in
(a) agriculture (b) horticulture (c) both (d) none
115. Which eff ect of auxin is applied worldwide for plant propagation?
(a) Apical dominance (b) Herbicidal action
(c) Initiate rooting in stem cutting (d) None
116. Auxins promote fl owering in
(a) tomatoes (b) pineapples (c) oranges (d) none
117. What prevents fruit and leaf to drop in early?
(a) ABA (b) IAA (c) NAA (d) Both (b) and (c)
118. What promotes abscission of older mature leaf?
(a) Abscissic acid (b) Auxin (c) ehtylene (d) Cytokinins
119. In most higher plants, the growing apical bud inhibits growth of lateral bud. This phenomena
is called
(a) Apical tolerance (b) Axial intolerance
(c) Apical ordinance (d) Apical dominance
120. What can help removing apical dominance?
(a) Removal of shoot tips (b) provide plant with a lot of auxin
(c) Both (d) None
121. The process of removal of shoot tip to avoid apical dominance is called _______
(a) Apexotomy (b) Decapitation (c) Both (d) Capitation
122. Decapitation is widely used for
(a) tea plantation. (b) hedge-making. (c) both. (d) none.
123. Which of the following PGR can induce parthenocarpy?
(a) ABA (b) 2, 4–D (c) Terpenes (d) Kinetin
124. Auxins induce parthenocarpy in which plants?
(a) Tomato (b) Pineapple (c) Apple (d) All
125. Which of the following PGR is widely used as herbicide?
(a) Auxin (b) Gibberillic acid (c) Cytokinins (d) All
126. Which of the following PGR is widely used to kill dicotyledonous weeds?
(a) IAA (b) NAA (c) 2, 4–D (d) ABA
127. 2, 4–D does not show herbicidal action on
(a) chicory ledones (b) monocoty ledonous
(c) mature dicotyledonous (d) mature monocotyledonous
128. Auxin 2, 4–D used for what?
(a) To remove weeds from farms by formers.
(b) To remove weeds from lawn by gardeners
(c) To induce fl owering in horticulture
(d) All
129. Auxin helps in what?
(a) Controlling phloem diff erentiation (b) Controlling xylem diff erentiation
(c) Cell division (d) Both (b) and (c)
130. How many varieties of Gibberellins reported from widely diff erent verity of organisms?
(a) 100 (b) 120 (c) 145 (d) 140
131. Diff erent types of Gibberellins is reported from what kind of organisms?
(a) fungi (b) higher plants (c) both (d) none
132. Which of the following was fi rst reported gibberellins to be discovered?
(a) GA1
(b) GA2
(c) GA3
(d) GA4
133. What is the chemical natural of all the GAs?
(a) Basic (b) Acidic (c) Neutral (d) Slightly basic
134. Gibberellins bring about what kind of change in plants?
(a) Morphological (b) Physiological (c) Genetical (d) None
135. Which ability of gibberellins is used to increase the length of grape stalks?
(a) ability to increase apically (b) ability to increase in length of axis
(c) ability to avoid apical dominance (d) all
136. How does gibberellins not chance quality of an apple?
(a) Make it sweeter (b) Elongate it in size (c) Improve its shape (d) All
137. How can Gibberellins help to extend the market period?
(a) It delays senescence (b) Increases ripening period
(c) Increases fl owering time (d) All
138. In the form of sugar, sugarcane stores what?
(a) Proteins (b) Carbohydrates (c) Glycoproteins (d) None
139. On spraying Gibberellins on sugarcane crops what major change will it bring?
(a) Increase sweetness (b) Increase length of stem
(c) Increase root strength (d) All
140. Spraying of Gibberellins over sugarcane can increase the yield by how much?
(a) 20 tonnes/acre (b) 20 kg/acre
(c) 20 quintet/acre (d) None
141. What change does it bring in juvenile conifers when sprayed with GAs?
(a) hastens maturity period (b) hastens germination period
(c) hastens dormancy period (d) None
142. Spraying of GAs on juvenile conifers causes
(a) early fl owering (b) early germination
(c) early seed production (d) all
143. Cytokinins have specifi c eff ects on
(a) cytokinosis (b) cytokinesis (c) cytoketosis (d) cytolysis
144. In what form cytokinins were discovered?
(a) Terpenes (b) Toluenes (c) Kinetin (d) None
145. Gibberellins promoters bolting in which plants?
(a) Beet (b) Cabbage (c) Both (d) None
146. Kinetin is ________
(a) Cytokinins (b) Modifi ed form of adenine
(c) Purine (d) All
147. Kinetin was fi rst discovered from
(a) corn-kernels (b) autoclaved herring sperm DNA
(c) coconut milk (d) all
148. Naturally kinetin occurs in
(a) coconut milk (b) pineapple (c) corn (d) none
149. Naturally available cytokinin—like substance is
(a) kinetin (b) zeatin (c) both (d) none
150. Zeatin was isolated from what?
(a) corn-kernels (b) coconut milk (c) both (d) none
151. Where are natural cytokinins synthesized?
(a) Areas of rapid cell division (b) Areas undergoing diff erentiation
(c) Both (d) None
152. Where are natural cytokinins synthesized?
(a) Root apices (b) Young fruits
(c) Developing shoot buds (d) All
153. How many of the following PGR help to overcome apical dominance?
Auxins, Gibberellins, Cytokinins, Ethylene
(a) 1 (b) 2 (c) 3 (d) 4
154. How many of the following PGRs help in delay of senescence?
Auxins, Gibberellins, Cytokinins, Ethylene
(a) 1 (b) 2 (c) 3 (d) 4
155. A plant tissue is undergoing senescence, which PGR would be found in it?
(a) Auxins (b) Gibberellins (c) Cytokinins (d) Ethylene
156. Large amounts of ethylene is synthesized in
(a) Ripening fruit (b) Newly grown leaf
(c) Apex (d) Axial bud
157. What are the infl uences of ethylene on plants?
(a) horizontal growth of seedlings (b) swelling of the axis
(c) apical hook formation in dicot seedling (d) all
158. What is the of ethylene eff ect on plant organs, especially leaves and fl owers?
(a) promotes abscission (b) promotes senescence
(c) both (d) none
159. What is the eff ect of ethylene on ripening fruit?
(a) increases rate of growth (b) increase in rate of respiration
(c) both (d) none
160. Rise is rate of respiration is called
(a) respiratory climax (b) respiratory rise
(c) respiratory climactic (d) none
161. Which of the following PGR is used to break seed and bud dormancy?
(a) Auxins (b) Gibberellins (c) Cytokinins (d) Ethylene
162. Ethylene initiates germination in which seed?
(a) Mustard (b) Peanut (c) Both (d) None
163. Sprouting of potato tubers is initiated by which of the following PGR?
(a) Cytokinin (b) Ethylene (c) Both (d) None
164. How does ethylene help plants to increase their absorption surface?
(a) promote growth of root (b) promote formation of root hair
(c) both (d) none
165. Ethylene is used to initiate fl owering and for synchronizing fruit set in which fruit?
(a) Apple (b) Pineapple (c) Banana (d) All
166. Ethylene induces fl owering in which fruit?
(a) Mango (b) Apple (c) Pineapple (d) All
167. Which of the following is the most widely used PGR in agriculture?
(a) IAA (b) ABA (c) GA3
(d) Ethylene
168. Which of the following is a characteristic of ethephon?
(a) readily absorbed (b) transported within the plant
(c) releases ethylene slowly (d) all
169. Ethephon hastens fruit ripening in
(a) Mango (b) Tomato (c) Apple (d) Both (b) and (c)
170. Ethephon accelerates abscission in fl owers and fruits like
(a) Cherry (b) Walnut (c) Cotton (d) All
171. How does ethephon increase the yield of cucumber?
(a) promote senescence (b) promotes female fl owers
(c) promotes male fl owers (d) both (a) and (b)
172. For which role ABA was discovered?
(a) Abscission (b) Dormancy (c) Both (a) and (b) (d) Ripening fruits
173. What are the actions of ABA?
(a) General plant growth inhibitor (b) Inhibitor of plant metabolism
(c) Stimulates closure of stomata in epidermis (d) All
174. Why is ABA called stress hormone
(a) Removes various stresses from plant
(b) Increase tolerance of plant to various kind of stresses
(c) Both (a) and (b)
(d) None
175. ABA plays an important role in all except
(a) Seed development (b) Maturation (c) Dormancy (d) Germination
176. What is/are the factors that are unfavorable growth of seeds?
(a) Desication (b) Air (c) Carbon dioxide (d) All
177. ABA is antagonist to
(a) IBA (b) IAA (c) GA2
(d) All
178. All are types of roles played by PGR except
(a) Individualistic (b) Synergistic (c) Both (a) and (b) (d) None
179. Which of the following events are controlled by extrinsic factors via PGR?
(a) Vernalisation (b) Flowering (c) Dormancy (d) All
180. All are extrinsic factors for growth and development except
(a) Temperature (b) Light (c) Both (a) and (b) (d) Nutrition
181. What kind of plants require the exposure to light for a period exceeding a well defi ned critical
duration?
(a) Short day plants (b) Day-neutral plants
(c) Long day plants (d) None
182. What kind of plants require the exposure to light for a period less than critical duration?
(a) Short day plants (b) Day-neutral plants
(c) Long day plants (d) None
183. Plants with no such correlation between exposure to light duration and induction of fl ower
response are called
(a) Long day plant (b) Day-neutral plants
(c) Short day plant (d) None
184. What is more important of these?
(a) Light period (b) Dark period
(c) Both (a) and (b) (d) None
185. According to Hypothesis, which substances are responsible for photoperiodism?
(a) Hormonal substance (b) Abcissic acid
(c) Gibberellins (d) All
186. When fl owering is either quantitatively or qualitatively dependent or exposure to low tempera-
ture it is called ____ phenomenon
(a) Photoperiodism (b) Thermoperiodism
(c) Vernalisation (d) Dormancy
187. Which of the plants don’t have winter and spring varieties?
(a) Wheat (b) Rice (c) Barley (d) Rye
188. When are winter varieties planted?
(a) Spring (b) Winter (c) Autumn (d) All
189. When is the harvesting of winter varieties done?
(a) Spring (b) Winter (c) Mid-summer (d) Autumn
190. Biennials are what kind of plants
(a) Dicarpous (b) Monocarpic (c) Polycarpic (d) None
191. Which of the following are common biennials?
(a) Carrots (b) Cabbages (c) Sugarbeet (d) All
192. Cold treatment to biennial plants will stimulate what kind of response?
(a) Photo hastens (b) Photoropism (c) Photoperiodism (d) All
Answer Keys -
1. (d) 2. (c) 3. (a) 4. (c) 5. (a) 6. (d) 7. (d) 8. (c) 9. (c) 10. (c)
11. (d) 12. (a) 13. (d) 14. (d) 15. (a) 16. (d) 17. (c) 18. (c) 19. (a) 20. (d)
21. (d) 22. (a) 23. (b) 24. (b) 25. (c) 26. (d) 27. (d) 28. (d) 29. (c) 30. (c)
31. (d) 32. (d) 33. (c) 34. (c) 35. (b) 36. (d) 37. (c) 38. (a) 39. (d) 40. (c)
41. (a) 42. (b) 43. (a) 44. (c) 45. (b) 46. (b) 47. (a) 48. (d) 49. (a) 50. (b)
51. (c) 52. (a) 53. (c) 54. (b) 55. (b) 56. (d) 57. (b) 58. (b) 59. (c) 60. (d)
61. (a) 62. (d) 63. (d) 64. (d) 65. (c) 66. (c) 67. (a) 68. (c) 69. (b) 70. (a)
71. (c) 72. (b) 73. (c) 74. (c) 75. (d) 76. (d) 77. (d) 78. (c) 79. (b) 80. (c)
81. (c) 82. (a) 83. (b) 84. (d) 85. (b) 86. (a) 87. (a) 88. (a) 89. (b) 90. (d)
91. (d) 92. (c) 93. (c) 94. (a) 95. (a) 96. (c) 97. (c) 98. (a) 99. (b) 100. (d)
101. (a) 102. (b) 103. (b) 104. (c) 105. (c) 106. (d) 107. (c) 108. (c) 109. (a) 110. (b)
111. (c) 112. (b) 113. (c) 114. (c) 115. (c) 116. (b) 117. (d) 118. (b) 119. (d) 120. (a)
121. (b) 122. (c) 123. (b) 124. (a) 125. (a) 126. (c) 127. (b) 128. (b) 129. (d) 130. (a)
131. (c) 132. (c) 133. (b) 134. (b) 135. (b) 136. (a) 137. (a) 138. (b) 139. (b) 140. (a)
141. (a) 142. (c) 143. (b) 144. (c) 145. (c) 146. (d) 147. (b) 148. (d) 149. (c) 150. (c)
151. (a) 152. (d) 153. (b) 154. (b) 155. (d) 156. (a) 157. (d) 158. (c) 159. (b) 160. (c)
161. (d) 162. (b) 163. (b) 164. (c) 165. (b) 166. (a) 167. (d) 168. (d) 169. (d) 170. (d)
171. (b) 172. (c) 173. (d) 174. (b) 175. (d) 176. (a) 177. (c) 178. (d) 179. (d) 180. (d)
181. (c) 182. (a) 183. (b) 184. (d) 185. (a) 186. (c) 187. (b) 188. (c) 189. (c) 190. (b)
191. (d) 192. (c)
0 Comments