- 1(current)
Q. No.In angiosperms, triple fusion results in the formation of:
| 1. | Zygote | 2. | Endosperm |
| 3. | Nucellus | 4. | PEC |
Subtopic: Double Fertilization |
From NCERT
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Syngamy in angiosperms results in the formation of:
| 1. | A haploid cell | 2. | A diploid cell |
| 3. | A triploid cell | 4. | A polyploid cell |
Subtopic: Double Fertilization |
87%
From NCERT
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Double fertilization is:
| 1. | Seen in some flowering plants |
| 2. | In seen in many flowering plants |
| 3. | Is seen in both flowering and non-flowering plants |
| 4. | Is a unique event of flowering plants |
Subtopic: Double Fertilization |
84%
From NCERT
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Double fertilization, a characteristic of angiosperms, results in the formation of:
| 1. | diploid zygote due to syngamy and triploid primary endosperm cell due to triple fusion |
| 2. | triploid zygote due to triple fusion and diploid primary endosperm cell due to syngamy |
| 3. | diploid zygote due to syngamy and haploid primary endosperm cell as it is formed pre-fertilization |
| 4. | diploid zygote due to syngamy and diploid primary endosperm cell due to triple fusion |
Subtopic: Double Fertilization |
92%
From NCERT
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Central cell in a female embryo sac, after triple fusion, becomes the:
| 1. | Zygote | 2. | Primary endosperm nucleus |
| 3. | Endosperm | 4. | Primary endosperm cell |
Subtopic: Double Fertilization |
From NCERT
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In a fertilised embryo sac, the haploid, diploid, and triploid structures are:
| 1. | Synergid, zygote, and primary endosperm nucleus |
| 2. | Synergid, antipodal and polar nuclei |
| 3. | Antipodal, synergid, and primary endosperm nucleus |
| 4. | Synergid, polar nuclei and zygote. |
Subtopic: Double Fertilization |
87%
From NCERT
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The diagram shows a fertilised embryo sac where:
| Statement I: | A is diploid and B is triploid |
| Statement II: | C are degenerating antipodal cells and D are degenerating synergids |
| 1. | Statement I is correct, Statement II is correct |
| 2. | Statement I is incorrect, Statement II is correct |
| 3. | Statement I is correct, Statement II is incorrect |
| 4. | Statement I is incorrect, Statement II is incorrect |
Subtopic: Double Fertilization |
86%
From NCERT
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The diagram shows stages in embryo development in a dicot where A, B, and C respectively are:
| 1. | Globular embryo, Heart shaped embryo, Immature Embryo |
| 2. | Globular embryo, Heart shaped embryo, Mature Embryo |
| 3. | Heart-shaped embryo, Globular embryo, Mature Embryo |
| 4. | Heart-shaped embryo, Globular embryo, Immature Embryo |
Subtopic: Double Fertilization |
93%
From NCERT
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Which of the given statement/s regarding embryogenesis in angiosperms is/are correct?
| I: | Embryo develops at the chalazal end of the embryo sac where the zygote is situated. |
| II: | Development of a zygote usually occurs after some endosperm formation. |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Subtopic: Double Fertilization |
67%
From NCERT
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- 1(current)
Q. No.
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