Cultivation of flowering and ornamental plants for gardens and for commerce and trade is called:
1.Horticulture2.Plant breeding
3.Floriculture4.Micropropagation

Subtopic:   FLOWER – A FASCINATING ORGAN OF ANGIOSPERMS |
 68%

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In the diagrammatic representation of L.S. of a flower:
  
Statement I: A is anther and collectively anthers form the androecium of the flower.
Statement II: B is the site for landing of pollens during pollination, C is style, and D after fertilisation becomes a fruit.
 
1. Statement I is correct, Statement II is correct
2. Statement I is incorrect, Statement II is correct  
3. Statement I is correct, Statement II is incorrect
4. Statement I is incorrect, Statement II is incorrect
Subtopic:   FLOWER – A FASCINATING ORGAN OF ANGIOSPERMS |
 76%
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Given below is a three-dimensional cut section of an anther:
Statement I: The bilobed nature of an anther is very distinct in the given section.
Statement II: The anther is a two-sided [bigonal] structure consisting of four microsporangia located at the corners, two in each lobe.
 
1. Statement I is correct, Statement II is correct.
2. Statement I is incorrect, Statement II is correct.  
3. Statement I is correct, Statement II is incorrect.
4. Statement I is incorrect, Statement II is incorrect.
Subtopic:  Stamen: Anther |
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Identify A-D in the given enlarged view of one microsporangium showing wall layers:
A B C D
1. Epidermis Endothecium Middle layers Tapetum
2. Epithelium Endothelium Middle layers Tapetum
3. Endothecium Epidermis Tapetum Middle layers
4. Epithelium Endothelium Tapetum Middle layers
Subtopic:  Stamen: Microsporangium |
 90%
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The given diagram shows a mature dehisced anther.
 
 
Statement I:  This process is coordinated precisely with pollen differentiation, floral development, and flower opening.
Statement II:  Anther dehiscence is the final function of the anther that causes the release of pollen grains. 
       
1. Both Statement I and Statement II are true and Statement II is the correct explanation of Statement I.
2. Both Statement I and Statement II are true but Statement II is not the correct explanation of Statement I.
3. Statement I is true but Statement II is false.
4. Statement I is false but Statement II is true.
Subtopic:  Stamen: Microsporangium |
 52%
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Regarding the given diagram:
Statement I:  It shows a pollen tetrad.
Statement II:  The four microspores are contained by callose walls.
 
1.  Statement I is correct, Statement II is correct.
2.  Statement I is incorrect, Statement II is correct.  
3.  Statement I is correct, Statement II is incorrect.
4.  Statement I is incorrect, Statement II is incorrect.
Subtopic:  Stamen: Male Gametophyte |
 79%
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Study the stages of maturation of microspore into a pollen grain and select the correct statements:
Statement I:  The spindle formation as seen in A is strictly symmetric.
Statement II:  The larger cell [B] is the generative cell and the smaller cell [C] is the vegetative cell.
 
1.  Statement I is correct, Statement II is correct
2.  Statement I is incorrect, Statement II is correct  
3.  Statement I is correct, Statement II is incorrect
4.  Statement I is incorrect, Statement II is incorrect
Subtopic:  Stamen: Male Gametophyte |
 69%
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Match each item in Table I with one in Table II and select the correct match from the codes given:
Table I:
A. B. C.
 
Table II
P. A dissected flower of Hibiscus showing pistil where other floral parts have been removed
Q. Multicarpellary, syncarpous pistil of Papaver
R. Multicarpellary, apocarpous gynoecium of Michelia

Codes:
A B C
1. P Q R
2. P R Q
3. Q R P
4. R P Q
Subtopic:  Pistil: Female Gametophyte |
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Regarding part I of the diagram:

Statement I: A is the Chalazal end.
Statement II: B is the microspore mother cell, C is the microspore dyad and D is the microspore tetrad.
 
1.  Statement I is correct, Statement II is correct
2.  Statement I is incorrect, Statement II is correct  
3.  Statement I is correct, Statement II is incorrect
4.  Statement I is incorrect, Statement II is incorrect
Subtopic:  Pistil: Ovule |
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Regarding part II of the diagram:
Statement I:  It shows the two, four, and eighth nucleate stages of the embryo sac.
Statement II:  The divisions are mitotic and free nuclear.
 
1.  Statement I is correct, Statement II is correct
2.  Statement I is incorrect, Statement II is correct  
3.  Statement I is correct, Statement II is incorrect
4.  Statement I is incorrect, Statement II is incorrect
Subtopic:  Pistil: Ovule |
 92%
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