Which part of the fruit, labelled in the given figure makes it a false fruit?

1. D-Seed
2. A-Mesocarp
3. B-Endocarp
4. C-Thalamus

Subtopic:  Fruit |
 86%
From NCERT
NEET - 2022
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What will be the ploidy of endosperm of a seed produced after crossing tetraploid female plant with tetraploid male plant? 
1. Pentaploid 
2. Hexaploid 
3. Diploid 
4. Triploid 

Subtopic:  Post Pollination Events |
 56%
NEET - 2022
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Which of the following set represents the correct labeling of A, B, C and D with respect to the given diagram? 

1. A- Seed Coat,  B- Cotyledon, C- Endosperm, D - Hypocotyle 
2. A -Seed Coat,  B- Scutellum, C- Endocarp, D - Mesocarp
3. A- Seed Coat,  B- Scutellum, C- Microphyle, D - Endocarp 
4. A-Pericarp, B - Coleoptile 
Subtopic:  Seed |
 74%
From NCERT
NEET - 2022
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Bee-keeping helps to improve the yield of following crops Except ____________. 
1. Jowar 
2. Sunflower 
3. Apple 
4. Mustard 

Subtopic:  Pollination & Outbreeding Devices |
 51%
NEET - 2022
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Which of the following best describes the ploidy level of a fertilized embryo sac?
1. All cells are diploid
2. All cells are triploid.

3.  All cells are polyploidy
4. There are haploid, diploid, and triploid cells
Subtopic:  Double Fertilization | Embryo |
 78%
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Assertion (A): Hybrids are widely used in cultivation to increase productivity and apomixes can be an important tool for maintaining hybrid nature.
Reason (R): Seeds produced by apomictic plants are identical to mother plant as there is no segregation
Mark the correct option :
 
1. Both (A) & (R) are true and (R) is the correct explanation of (A).
2. Both (A) & (R) are true but (R) is not the correct explanation of (A).
3. (A) is true statement but (R) is false.
4. Both (A) and (R) are false statements.
Subtopic:  Apomixis & Polyembryony |
 75%
From NCERT
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The generative cell of male angiosperm gametophytes is haploid. This cell divides to produce two haploid sperm cells. What type of cell division does the generative cell undergo to produce these sperm cells?
1. binary fission
2. mitosis

3. meiosis
4. mitosis without subsequent cytokinesis

 
Subtopic:  Stamen: Microsporangium | Stamen: Male Gametophyte |
 73%
From NCERT
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Match the following and choose correct option
 Group-A  Group-B
A.      Aleurone layer i.       without fertilization
B.      Parthenocarpic fruit ii.       Nutrition
C.     Ovule  iii.      Double fertilization
D.     Endosperm iv.     Seed
               
            Option
1. A-1,B-ii, C-iii, D-iv
2. A-ii, B-I, C-iv, D-iii

3. A-iv, B-ii, C-I, D-iii
4. A-ii, B-iv, C-I, D-iii

 
Subtopic:  Endosperm |
 93%
From NCERT
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Assertion (A): The megaspore mother cell divide mitotically to produce four spores.
Reason (R):  Megaspore mother cells are diploid and megaspore is haploid.
Mark the correct option :
1. Both (A) & (R) are true and (R) is the correct explanation of (A).
2. Both (A) & (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) is false but (R) is true.
Subtopic:  Pistil: Ovule | Pistil: Female Gametophyte |
 62%
From NCERT
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The functional role of sporopollenin is primarily to
1. comprise spore surface structures that catch the wind and assist in spore dispersal
2. reduce dehydration
3. make spores less dense and able to disperse more readily
4. repel toxic chemicals
Subtopic:  Pollination & Outbreeding Devices |
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