What is common between vegetative reproduction and Apomixis?
1. Both produce progeny identical to the parent
2. Both are applicable to only dicot plants
3. Both bypass the flowering phase
4. Both occur round the year

Subtopic:  Apomixis & Polyembryony |
 86%
From NCERT
AIPMT - 2011
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In angiosperms, functional megaspore develops into:
1. Pollen sac
2. Embryo sac
3. Ovule
4. Endosperm

Subtopic:  Pistil: Female Gametophyte |
 82%
From NCERT
AIPMT - 2011
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Which one of the following statements is wrong?

1. Vegetative cell is larger than generative cell
2. Pollen grains in some plants remain viable for months
3. Intine is made up of cellulose and pectin
4. When pollen is shed at a two-celled stage, double fertilization does not take place
Subtopic:  Stamen: Male Gametophyte |
 91%
From NCERT
AIPMT - 2012
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What is the function of germ pores?
1. Absorption of water for seed germination
2. Initiation of pollen tube
3. Release of male gametes
4. The emergence of radicle

Subtopic:  Pollen - Pistil Interaction |
 70%
From NCERT
AIPMT - 2012
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Plants with ovaries having only one or a few ovules are generally pollinated by: 

1. Butterflies 

2. Birds 

3. Wind 

4. Bees 

Subtopic:  Pollination & Outbreeding Devices |
 83%
From NCERT
AIPMT - 2012
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Animal vectors are required for pollination in:
1. Vallisneria
2. Mulberry
3. Cucumber
4. Maize
Subtopic:  Pollination & Outbreeding Devices |
NEET - 2013
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Albuminous seeds store their reserve food mainly in:
1. Endosperm 
2. Cotyledons 
3. Hypocotyl 
4. Perisperm 
Subtopic:  Seed |
 77%
From NCERT
NEET - 2013
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Megaspores are produced from the megaspore mother cells after:
1. Mitotic division
2. Formation of a thick wall
3. Differentiation
4. Meiotic division
Subtopic:  Pistil: Female Gametophyte |
 84%
From NCERT
NEET - 2013
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Which one of the following statements is correct?
1. Cleistogamous flowers are always autogamous
2. Xenogamy occurs only by wind pollination
3. Chasmogamous flowers do not open at all
4. Geitonogamy involves the pollen and stigma of flowers of different plants
Subtopic:  Pollination & Outbreeding Devices |
 86%
From NCERT
NEET - 2013
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Which of the following statements is correct?
1. Sporopollenin can be degraded by enzymes
2. Sporopollenin in made up of inorganic materials
3. Sporopollenin can withstand high temperatures as well as strong acids and alkalis
4. Sporopollenin can withstand high temperatures but not strong acids
Subtopic:  Stamen: Male Gametophyte |
 90%
From NCERT
NEET - 2013
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