In angiosperms, microsporogenesis and megasporogenesis?

1. Occur in anther

2. Form gametes without further divisions

3. Involve meiosis

4. Occur in ovule

Subtopic:  Stamen: Male Gametophyte | Pistil: Female Gametophyte |
 83%
From NCERT
NEET - 2015
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Male gametophyte in angiosperms produces?

1. Two sperms and a vegetative cell

2. Single sperm and a vegetative cell

3. Single sperm and two vegetative cells

4. Three sperms

Subtopic:  Stamen: Male Gametophyte |
 77%
From NCERT
NEET - 2015
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Which one of the following statements is not true?

1. Pollen grains are rich in nutrients and they are used in the
form of tablets and syrups
2. Pollen grains of some plants cause severe allergies and
bronchial afflictions in some people
3. The flowers pollinated by flies and beetles secrete foul odour
to attract them
4. Honey is made by bees by digesting pollen collected from
flowers

Subtopic:  Stamen: Male Gametophyte |
 73%
From NCERT
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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Pollen tablets are available in the market for:

1. In vitro fertilization 2. Breeding programmes
3. Supplementing food 4. Ex-situ conservation
Subtopic:  Stamen: Male Gametophyte |
 91%
From NCERT
AIPMT - 2014
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Which of the following statements is correct?
1. Sporopollenin can be degraded by enzymes
2. Sporopollenin in made up of inorganic materials
3. Sporopollenin can withstand high temperatures as well as strong acids and alkalis
4. Sporopollenin can withstand high temperatures but not strong acids
Subtopic:  Stamen: Male Gametophyte |
 91%
From NCERT
NEET - 2013
Please attempt this question first.
Hints
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An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is:

1. Cuticle
2. Sporopollenin
3. Lignin
4. Cellulose

Subtopic:  Stamen: Male Gametophyte |
 97%
From NCERT
AIPMT - 2012
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NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following statements is wrong?

1. Vegetative cell is larger than generative cell
2. Pollen grains in some plants remain viable for months
3. Intine is made up of cellulose and pectin
4. When pollen is shed at a two-celled stage, double fertilization does not take place
Subtopic:  Stamen: Male Gametophyte |
 91%
From NCERT
AIPMT - 2012
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which one of the following is resistant to enzyme action?

1. Cork
2. Wood fibre
3. Pollen exine
4. Leaf cuticle
Subtopic:  Stamen: Male Gametophyte |
 94%
From NCERT
AIPMT - 2008
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh