Use "megaspore" in a sentence

1. Non-recurrent Apomixis: Plants that undergo Nonrecurrent Apomixis have a megaspore mother cell that form a haploid

2. In this type of Agamospermy, a diploid embryosac is formed either from the diploid nucellar cells (a phenomenon called apospory, e.g., citrus, mango, prickly pear etc.) or from the diploid megaspore mother cell (a phenomenon called diplospory, e.g