During the development of monosporic embryo sac, the following events can be observed in angiosperms.
A. Movement of nuclei towards opposite poles after first free nuclear division.
B. Movement of two nuclei one from each pole towards the center.
C. Formation of cell walls around eight nuclei.
D. Three cells of the micropylar end of embryo sac organize into antipodals.

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C and D

A and B

B and C

A and D

answer is C.

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Detailed Solution

After first free nuclear division, one nucleus migrates towards upper pole and another one towards lower pole. After third free nuclear division, one nucleus from each pole migrates towards the center of cell to behave as polar nuclei. Around three nuclei of chalazal end, cell walls are formed to organize them as antipodals and similarly around the three nuclei of micropylar end

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