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Get Answers to all your Questions
Which type of endosperm formation involves cytokinesis after every division of the primary endosperm nucleus?
Nuclear type
Cellular type
Helobial type
None of the above
Answers (1)
In cellular endosperm formation, cytokinesis occurs after every division of the primary endosperm nucleus. This means that each division of the nucleus is followed by the formation of cell walls, resulting in the endosperm becoming cellular right from the beginning of its development.
In contrast, in nuclear endosperm formation (option 1), the first division and subsequent divisions may not be accompanied by wall formation. The nuclei may remain free or become separated by walls, but cell walls are not formed after each division.
Helobial endosperm formation (option 3) is an intermediate type of endosperm development found in the order Helobiales within monocots. It involves the first division followed by transverse cytokinesis, resulting in two unequal cells. Further development in both cells is nuclear, not cellular.
Therefore, the correct choice is (2) Cellular type, as it accurately describes the type of endosperm formation where cytokinesis occurs after every division of the primary endosperm nucleus.
Hence, the correct answer is option 2.
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