Description : In green plants light favour the formation of a. Auxin b. GA c. ABA d. IBA
Last Answer : Auxin
Description : Maleness in cucumber is induced by : a. GA b. ABA c. IBA d. None of above
Last Answer : GA
Description : Femaleness in cucumber is induced by : a. GA b. ABA c. IBA d. None of above
Last Answer : None of above
Description : Dormancy of seeds are broken by a. GA b. Ethylene c. Water d. None of above
Description : Tumerous tissue cells are promising source of: a. Abscibic acid b. Kinin c. Alar d. Jasminoides
Last Answer : Kinin
Description : Alar significantly increased fruit. a. Size b. Color c. Weight d. All of above
Last Answer : All of above
Description : Abscisic acid (ABA) is natural plant hormone, which: a. Promote the growth b. Initiate the ripening c. Induce the fruit maturity d. retards the growth
Last Answer : retards the growth
Description : Plant growth regulator used for sucker control in Tobacco is a. IAA b. ABA c. GA d. MH
Last Answer : d. MH
Description : During propagation through cuttings, which hormone(s) is/are used for root promotion? a. ABA b. Seradix c. NAA d. All above
Last Answer : Seradix
Description : ABA is involved in (a) shoot elongation (b) increased cell division (c) dormancy of seeds (d) root elongation.
Last Answer : (d) root elongation.
Description : Which hormone breaks dormancy of potato tuber? (a) Gibberellin (b) IAA (c) ABA (d) Zeatin
Last Answer : (a) Gibberellin
Description : The hormone responsible for apical dominance is (a) IAA (b) GA (c) ABA (d) Florigen.
Last Answer : (a) IAA
Description : Hormone responsible for senescence is (a) ABA (b) auxin (c) GA (d) cytokinin.
Last Answer : (a) ABA
Description : Chemical use for nipping of gram is a. MH b. GA c. TIBA d. ABA
Last Answer : c. TIBA
Description : Dormancy of seed is a biological mechanisms that provides protection against ______: a. Seed spoilage b. Embryo abortion c. Pre mature germination d. Dehydration
Last Answer : Pre mature germination
Description : Dormancy in plant and seed is mainly due to a. Environmental factor b. Physiological factor c. a & b d. None
Last Answer : a & b
Description : Dormancy can be broken by the use of: a. Thiourea b. Ethlene chlorohydrin c. Ethylene acetylene d. All of the above
Last Answer : All of the above
Description : Dormancy period in potato is about a. 2 Months b. 1 Month c. 3 Months d. ½ Month
Last Answer : 2 Months
Description : Potato dormancy can be broken through a. Chemical treatment b. Low temperature c. Both of these d. None of these
Last Answer : Both of these
Description : Seed potato seed has a. Dormancy b. Rest period c. Both of these d. None of these
Last Answer : Dormancy
Description : Secondary dormancy in non dormant seeds is due to: j. Temperature a. Moisture b. Aeration c. Ligh
Last Answer : Temperature
Description : Reduction or elimination of dormancy in crop plant is due to : a. Domestication b. Hybridization c. Mutation h. Acclimatization
Last Answer : Acclimatization
Description : Storage life of vegetables increased by the use of GA spray at harvesting time a. 50 ppm b. 100 ppm c. 200 ppm d. None of above
Last Answer : 50 ppm
Description : Low temperature helps to _________ growth inhibitors: a. Increase b. Decrease c. Store d. Produce
Last Answer : Decrease
Description : Many _________ in super optimal concentrations also act as growth inhibitors : a. Auxins b. Gibberellins c. Cytokinins d. All of above
Last Answer : Auxins
Description : New growth of plants need _________ water for proper development: a. Low b. Medium c. High d. Very High
Last Answer : High
Description : Which of the following statements about an enzyme exhibiting allosteric kinetics with cooperative interaction is false? (A) A plot of V-Vk [s] has a sigmaidal shape (B) An inhibitor may increase the ... Km and Vmax (D) Removal of allosteric inhibitor may result in hyperbolic V-S [s] plot
Last Answer : Answer : D
Description : Which of the following is a valid therapeutic use of interaction? A. Use of Probenecid with Penicillin B. Giving Aspirin with warfarin C. Instructing patient to take levofloxacin with milk or antacid D. Treatment of depression of MAO Inhibitor and Citalopram
Last Answer : A. Use of Probenecid with Penicillin
Description : Chlorophyll formation takes place within a light wavelength of _________: a. 150-200 b. 200-300 c. 300-675 d. 700-900
Last Answer : 300-675
Description : The phase of fruit bud formation continues until _________: a. Anthesis b. Petal formation c. Pollination d. Differentiation
Last Answer : Anthesis
Description : Tomato is a _________ crop. a. Self pollinated b. Insect pollinated c. Oftenly cross pollinated d. Wind pollinated
Last Answer : Self pollinated
Description : Callus is a term usually referring to: a. The tissue on the collar of a limb b. The first tissue develops on a cut surface just before the root formation iniates. c. Deformed growth on plant limbs d. A disease of plant leaves and limbs
Last Answer : The first tissue develops on a cut surface just before the root formation iniates
Description : In plants, __________ is the process of converting stored energy into energy for plant growth. a. Transpiration b. Photosynthesis c. Respiration d. Pollination
Last Answer : Respiration
Description : In temperate climates, pruning should not be done near the end of the summer because: a. New growth will not harden before winter b. It may increase foliage disease c. Plants will not recover in time to produce new growth before winter d. Sever “bleeding” from the cuts will kill the plant
Last Answer : New growth will not harden before winter
Description : Pruning in old fruit trees increases fruit bud formation by increasing ______: a. Carbohydrates b. New vegetative growth c. Hormonal contents d. Cell sap
Last Answer : New vegetative growth
Description : Date growth does not cease if temperature does not fall below: a. 0°C. b. 10°C c. 18°C d. 20°C
Last Answer : 18°C
Description : Low temperature regime in summer which stops growth of mango is : a. 35°F b. 30°F c. 20°F d. 18°F
Last Answer : 18°F
Description : Growth retardants are the substances which slow down : a. Cell division b. Cell elongation c. a & b d. None of the above
Description : The amount of growth regulators present in naturally parthenocarpic fruits is: a. High b. Low c. Intermediate d. None of above
Description : Direction of plant growth is controlled by: a. Auxins b. Gibberellins c. Kinins d. All of above
Description : Most commonly used growth retardants are a. Phosphon b. MH c. Caumarin d. None of above
Last Answer : Phosphon
Description : Nitrogen in vegetables is needed for a. Vegetative growth b. Ripening /maturity c. Reproductive growth d. None of these
Last Answer : Vegetative growth
Description : $ Insectivorous plants get nitrogenous nutrition from the insects. IAA is growth promoter.
Last Answer : $ Insectivorous plants get nitrogenous nutrition from the insects. IAA is growth promoter. A. If both As and ... wrong D. If both As and R are wrong.
Description : Which of the following statement is correct? (1) The causal organism for foolish seedling disease is the source of gibberellin (2) Abscisic acid is a growth promoter (3) The ratio of auxin : cytokinin control cell differentiation (4) Bolting of cabbage can be induced by treatment with IAA
Last Answer : Ans. ((d))
Description : Scarification of seeds is done for removing (a) Dormancy (b) Germination inhibitors (c) Growth (d) Embryo
Last Answer : Ans:(a)
Description : The process of growth is maximum during (a) log phase (b) lag phase (c) senescence (d) dormancy.
Last Answer : (a) log phase
Description : Which plant growth regulator is used for ripening? a) GA b) IBA c) Ethylene d) Cytokinin
Last Answer : c) Ethylene
Description : PCI stands for _________ a) Peripheral Component Interconnect b) Partial Component Interconnect c) Peripheral Component Interaction d) Partial Component Interaction
Last Answer : Answer: a Explanation: PCI is a high-bandwidth bus that can function as a peripheral bus. Compared with others, it delivers better system performance
Description : Which of the following is/are true of the actions of transforming growth factor beta (TGF-b) during wound repair? A. Increased matrix and proteoglycan synthesis. B. Inhibition of proteases. ... of plasminogen inhibitor. D. Chemotaxis for fibroblasts and macrophages. E. Autoinduction of TGF-b.
Last Answer : Answer: ABDE DISCUSSION: Through autocrine and paracrine mechanisms TGF-b stimulates the deposition of collagen and other matrix components by fibroblasts, inhibits proteases, blocks plasminogen inhibitor, ... effects. The sustained production of TGF-b at the wound site leads to tissue fibrosis
Description : The mode of action of dinitroanilines a). Shoot growth inhibitor b). Lipid inhibitor c). Root growth inhibitor d). Amino acid inhibitor
Last Answer : c). Root growth inhibitor