Botany - Sexual Reproduction in Flowering Plants Question with Solution | TestHub

The nucleus of the functional megaspore divides mitotically to form two nuclei which move to the opposite poles, forming the 2-nucleate embryo sac.

Two more sequential mitotic nuclear divisions result in the formation of the 4-nucleate and later the 8-nucleate stages of the embryo sac.

Six of the eight nuclei are surrounded by cell walls and organised into cells.

The two nuclei, called polar nuclei are situated above the egg apparatus in the large central cell.