Question

The embryo sac of an angiosperm is made up of

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

Answer 1

The correct option is B 7 cells and 8 nuclei

The megagametophyte develops from the megaspore by repeated mitotic and meiotic division which leads to the formation of eight cells out of which three gets arranged on the micropylar end while the other three gets arranged at the chalazal end. The two cell fuses in the center to form one large cell with two polar nuclei. So, endosperm has 7 cell and 8 nuclei. So, the correct answer is option B.