Question

A mature haploid female gametophyte has

• A. 8 cells and 7 nuclei
• B. 7 cells and 8 nuclei
• C. 6 cells and 7 nuclei
• D. 7 cells and 6 nuclei

Answer 1

The correct option is B 7 cells and 8 nuclei

A mature haploid female gametophyte i.e. the embryo sac consists of 2 synergids, 1 egg cell, 3 antipodal cells and a central cell. Hence, it has 7 cells.
Each of these cells has 1 nucleus except for the central cell which has 2 polar nuclei. Hence, the embryo sac has 7 cells in total and 8 nuclei.