Question

how many megaspore remain functional in each ovule of the spermatophytes​

Answer 1

Answer ⤵️⤵️

In most flowering plants, only one megaspore survives per ovule, typically this is the most proximal megaspore, while the remaining three undergo programmed cell death (Fig. 13.2A). The surviving megaspore is called the Functional Megaspore (FM) and it gives rise to the embryo sac after mitotic divisions (see below).

Answer 2

Answer:

Megaspore mother cell undergoes meiosis to produce four megaspores.

Explanation:

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