The outermost and innermost wall layers of microsporangium in an anther are respectively.

1. Endothecium and tapetum

2. Epidermis and endodermis

3. Epidermis and middle layer

4. Epidermis and tapetum

Subtopic:  Stamen: Microsporangium |
 88%
From NCERT
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Which one of the following statements is correct?

1. Sporogenous tissue is haploid

2. Endothecium produces the microspores

3. Tapetum nourishes the developing pollen

4. Hard outer layer of pollen is called intine

Subtopic:  Stamen: Microsporangium |
 92%
From NCERT
AIPMT - 2013
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Which one of the following statements is not true?
1. Exine of pollen grains is made up of sporopollenin
2. Pollen grains of many species cause severe allergies
3. Stored pollen in liquid nitrogen can be used in crop breeding programs
4. Tapetum helps in the dehiscence of anther
Subtopic:  Stamen: Anther |
 90%
From NCERT
NEET - 2016
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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 |
 88%
From NCERT
NEET - 2016
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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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During microsporogenesis, meiosis occurs in

1. endothecium

2. microspore mother cells

3. microspore tetrads

4. pollen grains

Subtopic:  Stamen: Microsporangium |
 91%
From NCERT
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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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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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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
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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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