Ornithophilly takes place in:
1.  Yellow flower having nectaries
2.  Scented flower
3.  Flower with charming colour
4.  Modified corolla tube

Subtopic:  Pollination & Outbreeding Devices |
AIPMT - 1999
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Which pair is of insectivorous plants:
1.  Drosera and Vallisneria
2.  Utricularia and Hydrilla
3.  Allobandra and Utricularia
4.  Rafflesia and Dionea

Subtopic:  Pollination & Outbreeding Devices |
AIPMT - 1999
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Eight-nucleated embryosac is:

1. Only monosporic

2. Only bisporic

3. Only tetra sporic

4. Any of the above

Subtopic:  Pistil: Female Gametophyte |
 77%
From NCERT
AIPMT - 2000
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Endosperm is formed during double fertilization by:

1. Two polar nuclei & one male gamete

2. One polar nucleus & one male gamete

3. Ovum and male gamete

4. Two polar nuclei & two male gametes

Subtopic:  Double Fertilization |
 89%
From NCERT
AIPMT - 2000
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Hair found in the inflorescences of Zea mays is the modification of:

1. Style 2. Stigma
3. Spathe 4. Filaments
Subtopic:  Pollination & Outbreeding Devices |
 54%
From NCERT
AIPMT - 2000
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Anemophilly type of pollination is found in:
1.  Salvia
2.  Bottlebrush
3.  Vallisneria
4.  Coconut

Subtopic:  Pollination & Outbreeding Devices |
From NCERT
AIPMT - 2001
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

In grasses what happens in microspore mother cell for the formation of mature pollen grains:
1.  One meiotic and two mitotic divisions
2.  One meiotic & one mitotic division
3.  One meiotic division
4.  One mitotic division

Subtopic:  Stamen: Microsporangium |
 56%
From NCERT
AIPMT - 2001
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NEET 2023 - Target Batch - Aryan Raj Singh
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Adventive embryony in citrus is due to:

 
1. Nucellus 2. Integuments
3. Zygotic embryo 4. Fertilized egg
Subtopic:  Embryo |
 70%
AIPMT - 2001
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NEET 2023 - Target Batch - Aryan Raj Singh
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In Angiosperms, pollen tubes liberate their male gametes into the:

1. Central cell

2. Antipodal cells

3. Egg cell

4. Synergids

Subtopic:  Pollen - Pistil Interaction |
 81%
From NCERT
AIPMT - 2002
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

What is the direction of the micropyle in the anatropous ovule:

1. Upward 2. Downward
3. Right 4. Left
Subtopic:  Pistil: Ovule |
 57%
From NCERT
AIPMT - 2002
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh