write a note on the development of endosperm.mention the types with example
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Explanation:There are three types of endospenns on the basis of mode of development. These are nucelar type, cellular type and Helobial type. I. Nuclear Type: In this case, the primary endosperm nucleus divides by free nuclear divisions. Wall is not formed between them. A vacuole appears in the centre of the embryo sac. It increases in size and. Therefore, the nuclei are pushed to the periphery along the wall of the embryo sac. Later, walls develop between the nuclei. Thus cellular tissues are formed.
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