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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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 |
 94%
From NCERT
AIPMT - 2014
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Non- albuminous seed is produced in:

1. Maize

2. Castor

3. Wheat

4. Pea

Subtopic:  Seed |
 74%
From NCERT
AIPMT - 2014
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NEET 2023 - Target Batch - Aryan Raj Singh
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Megasporangium is equivalent to:
1. Fruit
2. Nucellus
3. Ovule
4. Embryo sac

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 |
 88%
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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Both, autogamy and geitonogamy are prevented in:

1. Papaya

2. Cucumber

3. Castor

4. Maize

Subtopic:  Pollination & Outbreeding Devices |
 90%
From NCERT
AIPMT - 2012
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An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is:
1. Cuticle
2. Sporopollenin
3. Lignin
4. Cellulose

Subtopic:  Stamen: Male Gametophyte |
 97%
From NCERT
AIPMT - 2012
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The gynoecium consists of many free pistils in flowers of:

1. Aloe

2. Tomato

3. Papaver

4. Michelia

Subtopic:  Pistil: Female Gametophyte |
 72%
From NCERT
AIPMT - 2012
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The coconut water and the edible part of coconut are equivalent to:

1. Endosperm

2. Endocarp

3. Mesocarp

4. Embryo

Subtopic:  Endosperm |
 90%
From NCERT
AIPMT - 2012
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh