Q. No.Which one of the following is the characteristic feature of gymnosperms?
| 1. | Seeds are absent. |
| 2. | Gymnosperms have flowers for reproduction. |
| 3. | Seeds are enclosed in fruits. |
| 4. | Seeds are naked. |
Subtopic: Gymnosperms |
79%
Level 2: 60%+
NEET - 2025
Please attempt this question first.
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Please attempt this question first.
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R):
In the light of the above statements, choose the correct answer from the options given below:
| Assertion (A): | In gymnosperms, the pollen grains are released from the microsporangium and carried by air currents. |
| Reason (R): | Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed. |
| 1. | (A) is False, (R) is True. |
| 2. | Both (A) and (R) are True and (R) correctly explains (A). |
| 3. | Both (A) and (R) are True and (R) does not correctly explain (A). |
| 4. | (A) is True, (R) is False. |
Subtopic: Gymnosperms |
69%
Level 2: 60%+
NEET - 2023
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Match List-I with List-II:
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (a) | Chlamydomonas | (i) | Moss |
| (b) | Cycas | (ii) | Pteridophyte |
| (c) | Selaginella | (iii) | Alga |
| (d) | Sphagnum | (iv) | Gymnosperm |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (i) | (ii) | (iv) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (iii) | (ii) | (i) | (iv) |
| 4. | (ii) | (iii) | (i) | (iv) |
Subtopic: Algae | Bryophytes | Pteridophytes | Gymnosperms |
91%
Level 1: 80%+
NEET - 2022
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Which of the following statements is incorrect about gymnosperms?
1. They are heterosporous
2. Male and female gametophytes are free-living
3. Most of them have narrow leaves with thick cuticles
4. Their seeds are not covered
Subtopic: Gymnosperms |
77%
Level 2: 60%+
NEET - 2020
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Pinus seeds cannot germinate and establish without fungal association. This is because:
1. its seeds contain inhibitors that prevent germination.
2. its embryo is immature.
3. it has an obligate association with mycorrhizae.
4. it has a very hard seed coat.
Subtopic: Gymnosperms |
89%
Level 1: 80%+
NEET - 2019
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Which of the following statement is correct?
| 1. | Ovules are not enclosed by the ovary wall in gymnosperms. |
| 2. | Selaginella is heterosporous, while Salvinia is homosporous. |
| 3. | Horsetails are gymnosperms. |
| 4. | Stems are usually unbranched in both Cycas and Cedrus. |
Subtopic: Gymnosperms: I | Gymnosperms |
81%
Level 1: 80%+
NEET - 2018
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Conifers are adapted to tolerate extreme environmental conditions because of?
1. broad hardy leaves
2. superficial stomata
3. thick cuticle
4. the presence of vessels
Subtopic: Gymnosperms |
87%
Level 1: 80%+
NEET - 2016
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Besides paddy fields, cyanobacteria are also found inside vegetative part of:
| 1. | Cycas | 2. | Equisetum |
| 3. | Psilotum | 4. | Pinus |
Subtopic: Gymnosperms: I | Gymnosperms |
78%
Level 2: 60%+
AIPMT - 2013
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The gametophyte is not an independent, free-living generation in:
1. Adiantum
2. Marchantia
3. Pinus
4. Polytrichum
1. Adiantum
2. Marchantia
3. Pinus
4. Polytrichum
Subtopic: Gymnosperms: I | Gymnosperms |
79%
Level 2: 60%+
AIPMT - 2011
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A prokaryotic autotrophic nitrogen-fixing symbiont is found in:
| 1. | Cycas | 2. | Cicer |
| 3. | Pisum | 4. | Alnus |
Subtopic: Gymnosperms: I | Gymnosperms |
88%
Level 1: 80%+
AIPMT - 2011
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