Arrange the following events in order of their occurrence.  I. Pollen tube enters via
Channel: Doubtnut
Date: 2020-05-03

Arrange the following events in order of their occurrence.  I. Pollen tube enters via micropyle in the ovule.  II. Megasore undergoes mitotic division.  III. 7-celled and 8 nucleate embryo sac formed.  IV. Three megaspores degenerate.  Codes