E. Kurosawa
1. | Reported the appearance of symptoms of the disease in rice seedlings |
2. | In 1926 |
3. | Used sterile filtrates of the fungus |
4. | All of these |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFind the wrong match.
1.F. W. Went - Oat seedlings
2.Charles Darwin - Canary Grass
3.Francis Darwin - Canary Grass
4.E. Kurosawa- Orange
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements about plant hormones is false?
1. The growth of plants in nature is probably regulated by a combination of growth-stimulating and growth-inhibiting hormones.
2. Abscisic acid generally promotes growth.
3. Gibberellins stimulate cell enlargement.
4. Cytokinins promote cell division.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn which of the following options the PGR is correctly matched with its two functions?
1. Abscisc acid - (i) Induce immediate stomatal closure in leaves.
(ii) Induce rooting is a twig.
2. Gibberellins - (i) Bolting in rosette plant.
(ii) Speed up the malting process in brewing industry.
3. Ethylene - (i) Delay leaf senescence.
(ii) Controls xylem differentiation.
4. Auxin - (i) Used to kill mocotyledonous weeds.
(ii) Promotes nutrient mobilisation.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn order to increase the yield of sugarcane crops, which of the following plant growth regulators should be sprayed?
1. | Ethylene | 2. | Auxins |
3. | Gibberellins | 4. | Cytokinins |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFoolish Seedling-
Find the odd one.
1.Bakane
2.Disease of Rice seedlings
3.Caused by viral pathogen
4.Gibberella fujikuroi
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements is correct?
1. All GAs are basic
2. All GAs are Acidic
3. Most of the GAs are Acidic
4. Most of the GAs are basic
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyEarly seed production in…….. can be done by GAs
1.Pineapple
2.Grapes
3.Tomatoes
4.Conifers
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGibberellic acid is a/an:-
1. lndole compound
2. Terpene
3. Adenine derivative
4. Carotenoid
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTo increase sugar production in sugarcanes, they are sprayed with
1. IAA
2. cytokinin
3. gibberellin
4. ethylene
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology