Practice question
Question
In the majority of angiosperms, the functional megaspore develops into the embryo sac. What is the ploidy sequence of the Nucellus, Megaspore Mother Cell (MMC), Functional Megaspore, and Female Gametophyte?
Explanation
The Nucellus is part of the sporophyte (2n). The Megaspore Mother Cell (MMC) differentiates from the nucellus and is also diploid (2n). The MMC undergoes meiosis to form megaspores (n). The functional megaspore (n) divides mitotically to form the female gametophyte (n).