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In the post-fertilizational changes within the ovule, the oospore forms the ........ while the fertilized fusion nuclues (product of triple fusion) develops the ......... respectively.
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After fertilization the female cell, now called the oospore, divides and part of it develops into the embryo (new sporophyte), which remains dormant for a time still protected by the ovule which has developed to become the seed.
Endosperm is formed when the two sperm nuclei inside a pollen grain reach the interior of an embryo sac or female gametophyte. One sperm nucleus fertilizes the egg, forming a zygote, while the other sperm nucleus usually fuses with the two polar nuclei at the center of the embryo sac, forming a primary endosperm cell (its nucleus is often called the triple fusion nucleus). That cell created in the process of double fertilization develops into the endosperm. Because it is formed by a separate fertilization, the endosperm constitutes an organism separate from the growing embryo.
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Question Text | In the post-fertilizational changes within the ovule, the oospore forms the ........ while the fertilized fusion nuclues (product of triple fusion) develops the ......... respectively. |
Answer Type | Text solution:1 |
Upvotes | 150 |