asked in Sexual reproduction in flowering plants by

Oenothera Type Structure

3 antipodal cell 

2 synergids 

1 egg 

2 polae nuclei oresent in the central cell

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7 cells and 8 nuclei

Although the no. of  cells in an embryo sac varies for different plants, majority of angiosoerms show Oenothera type structure of embryo sac.

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