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the ploidy level of nucleus is 2n
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2n, 2n, n,
Option B
Explanation :
Considering if the ploidy of plant is 2n, 1)Nucellus(located within the integumentary) have abundance reserve food materials. Its ploidy is 2n.
MMC (produces haploid gametophytes by meiotic division) Since, it undergoes meiotic division its ploidy is 2n.
Female gametophytes also called as embryo sac (produced by meiotic division from Megaspore mother cell) has ploidy n. Similarly, the functional megaspore is haploid in nature.
So the correct option is 2n,2n,n
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