- 1(current)
Q. No.The pollen tube releases the two male gametes first into:
1. The vicinity of the egg cell.
2. The vicinity of polar nuclei.
3. In the cytoplasm of synergids.
4. In the cytoplasm of antipodals.
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| 1. | 50 | 2. | 100 |
| 3. | 200 | 4. | 400 |
Double fertilization, a characteristic feature of angiosperms, was discovered independently by Sergei Nawaschin and Léon Guignard. in France. It involves the joining of a female gametophyte with two male gametes. In double fertilization, the maternal contribution to the genetic constitution of the endosperm is:
1. same that of the embryo
2. double that of the embryo
3. triple that of embryo
4. quadruple that of embryo
- 1(current)
Q. No.
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