In angiosperms, triple fusion results in the formation of:
1. | Zygote | 2. | Endosperm |
3. | Nucellus | 4. | PEC |
Syngamy in angiosperms results in the formation of:
1. | A haploid cell | 2. | A diploid cell |
3. | A triploid cell | 4. | A polyploid cell |
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 |
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 |
Central cell in a female embryo sac, after triple fusion, becomes the:
1. | Zygote | 2. | Primary endosperm nucleus |
3. | Endosperm | 4. | Primary endosperm cell |
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. |
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 |
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 |
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 |