Practice question
Question
While double fertilization is a later topic, the structure 'Central Cell' is prepared for it. Before fertilization, the central cell is:
Explanation
In the mature embryo sac prior to fertilization, the central cell contains two polar nuclei. While they may fuse just before fertilization to form a secondary nucleus (2n), the typical description of the mature sac characterizes the cell as having two polar nuclei (n+n).