what is definitive nucleus?
Answers
Answered by
0
Explanation:
The secondary nucleus formed by the fusion of two polar nuclei is also called definitive nucleus. Vegetative nucleus and Generative nucleus are present in the young pollen grain when the Microspore divides mitotically to form a large vegetative cell and a small generative cell.
Answered by
2
Answer:
The diploid nucleus found in the centre of the *embryo sac after the fusion of the two haploid *polar nuclei. A male gamete released from the pollen tube may fuse with this to form the triploid primary endosperm nucleus from which the endosperm develops.
Similar questions