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Plant Anatomy and Physiology MCQ question and answer with solution | Biology Gk MCQs

Learn Plant Anatomy and Physiology MCQ Questions and answers with easy and logical explanations in Biology Gk . Plant Anatomy and Physiology MCQ question provides all type of technical mcq questions which is important for SSC-CGL, UPPSC, NDA, CDS and all govt examinations Page-9 section-8

Each section contains 100 MCQs on Plant Anatomy and Physiology .
81
The agrochemicals like pesticides, insecticides and fungicides disturb the whole food chain through a process called
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Answer: Option A
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82
Which of the following is an example of a prominent dormancy breaking compound with advantage of wide safety margin between active and toxic dosages?
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Answer: Option B
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83
Which one of the following statements about transport mechanism in plants is correct?
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Answer: Option B
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84
In India, Mishra and Rao (1948) first time reported ecotypic differentiation in
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Answer: Option A
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85
Which of the following pollution types is the most common and dangerous type of environmental pollution that has been reported in all metropolitan cities and industrialised countries of the world?
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Answer: Option A
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86
In which of the following types of endosperm, the first nuclear division of the primary endosperm nucleus is followed by the formation of either a longitudinal or transverse wall in the central cell?
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Answer: Option C
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87
Match List-I with List-II and select the correct answer:
List-I List-II
a. Gravelly soil 1. Soil contains large particles of rocks together with sand and silt
b. Silt soil 2. Soil directly derived from limestones
c. Loam soil 3. Soil is practically intermediate between sandy and clay soils
d. Calcareous soil 4. Soil composed of sand, silt and clay particles of different sizes in more or less equal proportions
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Answer: Option B
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88
In which of the following ecosystems, secondary and tertiary consumers are usually absent?
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Answer: Option B
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89
During microsporogenesis the middle layers become flattened and crushed at the time of meiotic divisions in the microspore mother cells except in
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Answer: Option D
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90
Which of the following plants do not flower in response to gibberellins?
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Answer: Option C
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