In Cycas, pollination takes place in 
1. 3-celled stage 
2. 4-celled stage 
3. 2-celled stage 
4. 1-celled stage 

Subtopic:  Stamen: Male Gametophyte | Pollination & Outbreeding Devices |
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Nucellus forms which of the following part of fruit? 
1. Seed coat 
2. Perisperm 
3. Seed
4. Raphe
Subtopic:  Seed |
 84%
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Growth of pollen tube towards embryo sac is
1. geotropism
2. thigmotaxis
3. chemotaxis
4. All of these 
Subtopic:  Pollen - Pistil Interaction |
 52%
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Male gamete in angiosperm is produced hy
1. generative cell
2. microspore cell
3. vegetative cell
4. tube cell 
Subtopic:  Stamen: Male Gametophyte |
 81%
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Number of chromosomes in an angiosperm plant is 14, then the number of chromosomes in synergid cells will be
1. 14 2. 7
3. 28 4. 21
Subtopic:  Pistil: Ovule |
 68%
From NCERT
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Cleavage polyembryony occurs in? 
1. Pinus 
2. Mini Cycas
3. Cycas 
4. Ephedra
Subtopic:  Apomixis & Polyembryony |
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Pollen kitt is present in?
1. Anemophilly
2. Entamophily
3. Malacophilly
4. Zoophilly
Subtopic:  Pollination & Outbreeding Devices |
 87%
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In some organisms, karyokinesis is not followed by cytokinesis as a result of which multinucleate condition arises leading to the formation of syncytium. The perfect example for this is
1. appearance of a furrow in cell membrane.
2. liquid endosperm in coconut.
3. sexual reproduction.
4. fertilisation.
Subtopic:  Endosperm |
 88%
From NCERT
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Hardest substance in plant kingdom is?
1. Sepal
2. Corolla
3. Sporopollenin
4. Anther
Subtopic:  Stamen: Male Gametophyte |
 97%
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Match the following Columns:
Column I 
(Pollination technique)
Column II
(Pollinator)
A. Cheiropterophily 1. Ant
B. Anemophily 2. Bat
C. Myrmecophily 3. Snail
D. Malacophily 4. Wind
1. 3 2 1 4
2. 2 4 1 3
3. 4 3 2 1
4. 1 3 2 4
Subtopic:  Pollination & Outbreeding Devices |
 87%
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