What guides the entry of the pollen tube though the micropyle into the embryo sac in the angiosperms?
1. | Antipodals | 2. | Filiform apparatus in synergids |
3. | The egg cell | 4. | Polar nuclei |
While planning for an artificial hybridization programme involving dioecious plants, which of the following steps would not be relevant?
1. Bagging of the female flower
2. Dusting of pollen on the stigma
3. Emasculation
4. Collection of pollen