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Q. No.Development of the zygotes into young embryo takes within the female gametophytes in
1. Adiantum.
2. Selaginella.
3. Riccia.
4. Batrachospermum.
Subtopic: Pteridophytes |
71%
From NCERT
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Select the wrong statement:
| 1. | Anisogametes differ either in structure, function or behaviour |
| 2. | In Oomycetes, the female gamete is smaller and motile, while the male gamete is larger and non-motile |
| 3. | Chlamydomonas exhibits both isogamy and anisogamy and Fucus shows oogamy |
| 4. | Isogametes are similar in structure, function and behaviour |
Subtopic: Algae |
79%
From NCERT
AIPMT - 2013
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Mannitol is a sugar alcohol. It is as stored food in:
1. Fucus
2. Gracillaria
3. Chara
4. Porphyra
Subtopic: Pheophyceae: Brown Algae |
86%
From NCERT
AIPMT - 2011
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Subtopic: Bryophytes (Liverworts) |
82%
From NCERT
AIPMT - 2011
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Subtopic: Pheophyceae: Brown Algae |
89%
From NCERT
AIPMT - 2009
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Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of:
1. xerophytes
2. mesophytes
3. epiphytes
4. hydrophyte
Subtopic: Classification System: I | Classification System: II | Classification System |
AIPMT - 2009
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Which one of the following is heterosporous?
1. Dryopteris
2. Salvinia
3. Adiantum
4. Equisetum
Subtopic: Pteridophytes: Heterospory | Pteridophytes |
92%
From NCERT
AIPMT - 2008
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Rauwolfia serpentina is used in:
1. Curing high blood pressure
2. Kidney failure
3. Eye defect
4. Diabetes
61%
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In gymnosperms, the pollen chamber represents:
| 1. | a cell in the pollen grain in which the sperms are formed |
| 2. | a cavity in the ovule in which pollen grains are stored after pollination |
| 3. | an opening in the megagametophyte through which the pollen tube approaches the egg |
| 4. | the microsporangium in which pollen grain develop |
Subtopic: Gymnosperms |
56%
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Rauwolfia serpentina is used in:
1. Curing high blood pressure
2. Kidney failure
3. Eye defect
4. Diabetes
85%
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