

Reductional division that is meiosis is related to number of zygotes.
For 20 megaspore, 20 meiotic divisions are required. 20 eggs are produced from 20 megaspores. In a female gametophyte, 2 synergids are present and 3 antipodals i.e. in 20 female gametophyte, 20 synergids and 60 antipodals are present.
