Functional megaspore in an angiosperm develops into:

1.  Endosperm 2.  Embryo sac
3.  Embryo 4.  Ovule

Subtopic:  Pistil: Female Gametophyte |
 77%
From NCERT
NEET - 2017
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Which of the following has proved helpful in preserving pollens as fossils?

1. Pollen kit 2. Cellulosic intine
3. Oil content 4. Sporopollenin
Subtopic:  Stamen: Male Gametophyte |
 92%
From NCERT
NEET - 2018
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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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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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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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In the majority of angiosperms:

1. egg has a filiform apparatus
2. there are numerous antipodal cells
3. reduction division occurs in the megaspore mother cells
4. a small central cell is present in the embryo sac

Subtopic:  Pistil: Female Gametophyte |
 78%
From NCERT
NEET - 2016
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Pollination in water hyacinth and water lily is brought about by the agency of:

1. water 2. insects or wind
3. birds 4. bats
Subtopic:  Pollination & Outbreeding Devices |
 92%
From NCERT
NEET - 2016
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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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The ovule of an angiosperm is technically equivalent to:

1. megasporangium

2. megasporophyll

3. megaspore mother cell

4. megaspore

Subtopic:  Pistil: Ovule |
 70%
From NCERT
NEET - 2016
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Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by:

1. Bee

2. Wind

3. Bat

4. Water

Subtopic:  Pollination & Outbreeding Devices |
 75%
From NCERT
NEET - 2017
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