Question

The total number of genomes present in all the
nuclei of Polygonum type of embryosac after
the fusion of polar nuclei with each other​

Answer 1

Explanation:

megagametophyte (''female'' gametophyte): ma- ture embryo sac, most commonly consisting of seven cells and eight nuclei (two synergid cells, an egg cell, three antipodal cells, two polar nuclei).

Hope it will help you

Answer 2

Answer:

the fully organised polygonum type of embryo sac is a 7-celled 8-nuclate structure