Winged pollen grains are present in:

1 Mustard
2. Cycas
3. Mango
4. Pinus

Subtopic:  Pollination & Outbreeding Devices |
 54%
NEET - 2018
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NEET 2023 - Target Batch - Aryan Raj Singh
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Pollen grains can be stored for several years in liquid nitrogen having a temperature of:

1. –120 °C 2. –80 °C
3. –196 °C 4. –160 °C
Subtopic:  Stamen: Male Gametophyte |
 95%
From NCERT
NEET - 2018
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NEET 2023 - Target Batch - Aryan Raj Singh

Double fertilization is:
1. Fusion of two male gametes of a pollen tube with two different eggs
2. Fusion of one male gamete with two polar nuclei
3. Fusion of two male gametes with one egg
4. Syngamy and triple fusion
Subtopic:  Double Fertilization |
 84%
From NCERT
NEET - 2018
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NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?

1. Hydrilla 2. Yucca
3. Banana 4. Viola
Subtopic:  Pollination & Outbreeding Devices |
 93%
From NCERT
NEET - 2018
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Double fertilization is exhibited by:

1. Algae

2. Fungi

3. Angiosperms

4. Gymnosperms

Subtopic:  Double Fertilization |
 92%
From NCERT
NEET - 2017
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Proximal end of the filament of stamen is attached to the?
1. connective 2. placenta
3. thalamus or petal 4. anther
Subtopic:  Stamen: Anther |
 87%
From NCERT
NEET - 2016
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NEET 2023 - Target Batch - Aryan Raj Singh

The coconut water from tender coconut represents?
1. fleshy mesocarp
2. free - nuclear proembryo
3. free - nuclear endosperm
4. endocarp
Subtopic:  Endosperm |
 93%
From NCERT
NEET - 2016
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Transmission tissue is a characteristic feature of:

1. hollow style
2. solid style
3. dry stigma
4. wet stigma

Subtopic:  Pistil: Ovule |
 50%
NEET - 2015
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Male gametophyte with least number of cells is present in:

1. Pteris

2. Funaria

3. Lilium

4. Pinus

Subtopic:  Stamen: Male Gametophyte |
AIPMT - 2014
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Perisperm differs from endosperm in:
 
1. having no reserve food
2. being a diploid tissue
3. its formation by fusion of secondary nucleus with several sperms
4. being a haploid tissue

 

Subtopic:  Seed |
 67%
AIPMT - 2013
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