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Q. No.Seeds offer several advantages to angiosperms including:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II, and III are correct
| I: | Seed formation is more dependable. |
| II: | They have sufficient food reserves. |
| III: | They generate new genetic combinations leading to variations. |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II, and III are correct
Subtopic: Seed |
75%
Level 2: 60%+
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When an ovary in angiosperms develops into a fruit without fertilisation, the phenomenon is called:
1. Parthenocarpy
2. Apomixis
3. Asexual reproduction
4. Sexual reproduction
1. Parthenocarpy
2. Apomixis
3. Asexual reproduction
4. Sexual reproduction
Subtopic: Seed | Fruit |
90%
Level 1: 80%+
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Endosperm is completely consumed by the developing embryo before seed maturation in all the following except:
1. pea
2. groundnut
3. beans
4. castor
1. pea
2. groundnut
3. beans
4. castor
Subtopic: Embryo | Seed |
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Perisperm differs from endosperm in that:
| 1. | Perisperm is derived from the fertilization of the central cell, while endosperm is not. |
| 2. | Perisperm is a diploid tissue, while endosperm is tetraploid. |
| 3. | Endosperm is derived from the fertilization of the central cell, while perisperm is not. |
| 4. | Endosperm is a diploid tissue, while perisperm is triploid. |
Subtopic: Seed |
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Identify the correct statements:
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
| I: | There is no residual endosperm in mature seeds of pea and groundnut. |
| II: | Mature seeds of wheat and maize are albuminous. |
| III: | Perisperm is seen in mature seeds of black pepper and beet. |
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Seed |
81%
Level 1: 80%+
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Consider the given two statements:
| Assertion (A): | Seed is the basis of our agriculture. |
| Reason (R): | Seeds are normally the products of sexual reproduction in angiosperms. |
| 1. | Both (A) and (R) are True and (R) explains (A) |
| 2. | Both (A) and (R) are True and (R) does not explain (A) |
| 3. | (A) is True but (R) is False |
| 4. | (A) is False but (R) is True |
Subtopic: Seed |
68%
Level 2: 60%+
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Q. No.
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