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Q. No.Which one of the following may require pollinators, but is genetically similar to autogamy?
1.
Geitonogamy
2.
Xenogamy
3.
Apogamy
4.
Cleistogamy
Subtopic: Pollination & Outbreeding Devices |
87%
From NCERT
NEET - 2015
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Which one of the following statements is not true?
| 1. | Pollen grains are rich in nutrients and they are used in the form of tablets and syrups |
| 2. | Pollen grains of some plants cause severe allergies and bronchial afflictions in some people |
| 3. | The flowers pollinated by flies and beetles secrete foul odour to attract them |
| 4. | Honey is made by bees by digesting pollen collected from flowers |
Subtopic: Stamen: Male Gametophyte |
76%
From NCERT
NEET - 2015
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Which of the following are the important floral rewards to animal pollinators?
1. Colour and large size of the flower
2. Nectar and pollen grains
3. Floral fragrance and calcium crystals
4. Protein pellicle and stigmatic exudates
2. Nectar and pollen grains
3. Floral fragrance and calcium crystals
4. Protein pellicle and stigmatic exudates
Subtopic: Pollination & Outbreeding Devices |
89%
From NCERT
NEET - 2015
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Geitonogamy involves:
| 1. | Pollination of a flower by the pollen from another flower of the same plant. |
| 2. | Pollination of a flower by the pollen from another same flower. |
| 3. | Pollination of a flower by the pollen from a flower of another plant in the same population. |
| 4. | Pollination of a flower by the pollen from a flower of another plant belonging to a distant population. |
Subtopic: Pollination & Outbreeding Devices |
89%
From NCERT
AIPMT - 2014
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Pollen tablets are available in the market for:
| 1. | In vitro fertilization | 2. | Breeding programmes |
| 3. | Supplementing food | 4. | Ex-situ conservation |
Subtopic: Stamen: Male Gametophyte |
91%
From NCERT
AIPMT - 2014
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Function of filiform apparatus is to:
| 1. | Recognize the suitable pollen at the stigma |
| 2. | Stimulate division of generative cell |
| 3. | Producer nectar |
| 4. | Guide the entry of the pollen tube |
Subtopic: Pistil: Female Gametophyte |
95%
From NCERT
AIPMT - 2014
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Subtopic: Seed |
75%
From NCERT
AIPMT - 2014
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Subtopic: Pistil: Ovule |
73%
From NCERT
AIPMT - 2013
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Advantage of cleistogamy is:
1. More vigorous offspring
2. No dependence of pollinator
3. Vivipary
4. Higher genetic variability
Subtopic: Pollination & Outbreeding Devices |
89%
From NCERT
AIPMT - 2013
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Which one of the following statements is correct?
1. Sporogenous tissue is haploid
2. Endothecium produces the microspores
3. Tapetum nourishes the developing pollen
4. Hard outer layer of pollen is called intine
Subtopic: Stamen: Microsporangium |
92%
From NCERT
AIPMT - 2013
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