The ploidy levels of the cells of the nucellus, MMC, the functional megaspore and female gametop...

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The ploidy levels of the cells of the nucellus, MMC, the functional megaspore and female gametophyte
(a) \( 2 \mathrm{~N}, \mathrm{~N}, 2 \mathrm{~N}, \mathrm{~N} \)
(b) \( N, N, 2 N, N \)
(c) \( 2 N, 2 N, N, N \)
(d) N, 2N, 2N, N
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