Identify the direct statements:
 
Statement I: In some apomicts, the diploid egg cell is formed without reduction division and develops into the embryo without fertilisation.
Statement II: In many Citrus and mango varieties, some of the nucellar cells surrounding the embryo sac start dividing, protrude into the embryo sac, and develop into the embryos and this is called as nucellar polyembryony.
 
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:  Apomixis & Polyembryony |
 85%
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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 |
 51%
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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 |
 91%
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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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