Q. No.Filiform apparatus is a characteristic feature of?
1. Generative cell
2. nucellar embryo
3. aleurone cell
4. synergids
Subtopic: Pistil: Female Gametophyte |
91%
From NCERT
NEET - 2015
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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 |
84%
From NCERT
NEET - 2015
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Function of filiform apparatus is to:
| 1. | Recognize the suitable pollen at the stigma |
| 2. | Stimulate division of generative cell |
| 3. | Producer nectar |
| 4. | Guide the entry of the pollen tube |
Subtopic: Pistil: Female Gametophyte |
94%
From NCERT
AIPMT - 2014
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Megaspores are produced from the megaspore mother cells after:
1. Mitotic division
2. Formation of a thick wall
3. Differentiation
4. Meiotic division
1. Mitotic division
2. Formation of a thick wall
3. Differentiation
4. Meiotic division
Subtopic: Pistil: Female Gametophyte |
84%
From NCERT
NEET - 2013
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The gynoecium consists of many free pistils in flowers of:
| 1. | Aloe | 2. | Tomato |
| 3. | Papaver | 4. | Michelia |
Subtopic: Pistil: Female Gametophyte |
73%
From NCERT
AIPMT - 2012
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Subtopic: Pistil: Female Gametophyte |
95%
AIPMT - 2011
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In angiosperms, functional megaspore develops into:
1. Pollen sac
2. Embryo sac
3. Ovule
4. Endosperm
Subtopic: Pistil: Female Gametophyte |
83%
From NCERT
AIPMT - 2011
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Which one of the following pairs of plant structures has a haploid number of chromosomes?
1. Megaspore mother cell and antipodal cells
2. Egg cell and antipodal cells
3. Nucellus and antipodal cells
4. Egg nucleus and secondary nucleus
1. Megaspore mother cell and antipodal cells
2. Egg cell and antipodal cells
3. Nucellus and antipodal cells
4. Egg nucleus and secondary nucleus
Subtopic: Pistil: Female Gametophyte |
71%
AIPMT - 2008
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What does the filiform apparatus do at the entrance into the ovule?
| 1. | it helps in the entry of pollen tube into the synergid |
| 2. | it prevents the entry of more than one pollen tube into the embryo sac |
| 3. | it brings about the opening of the pollen tube |
| 4. | it guides the pollen tube from the synergid to the egg |
Subtopic: Pistil: Female Gametophyte |
55%
From NCERT
AIPMT - 2008
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Which one of the following is surrounded by a callose wall?
1. Microspore mother cell
2. Male gamete
3. Egg
4. Pollen grain
Subtopic: Pistil: Female Gametophyte |
52%
AIPMT - 2007
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