Formation of the megaspore from the megaspore mother cell involves a __________.

Step-by-step solution

The process of formation of megaspores from the megaspore mother cell (MMC) is called megasporogenesis. The megaspore mother cell is a diploid cell ( 2n ) that undergoes meiotic division (meiosis) to form a linear tetrad of four haploid megaspores ( n ). Therefore, the formation of the megaspore from the megaspore mother cell involves meiosis only. Answer: meiosis only