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1.In some plants (like lilies), all four megaspores survive. Three megaspores fuse into a single nucleus while one megaspore remains solitary. Then both of these nuclei go through two mitotic cell divisions to form the typical eight nucleus megagametophyte. One nucleus from each group join to form the polar cells. After fertilization by a sperm, what would the ploidy of the endosperm of a lily be

Sagot :

Answer:

Triploid.

Explanation:

The ploidy of endosperm of a lily will be triploid because the pollen cells fuse with the cell present in the ovary which results into triploid. Each ovule receives two sperm cells to the embryo sac. One sperm fertilizes the egg cell, forming the diploid zygote or embryo, while the other sperm fertilizes the central cell produces endosperm that is usually triploid. This endosperm is the part of the seed which provides nutrients to the embryo during its growth.

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