Question

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There is characteristic distribution of cells
within in embryosae. Substantiate​

Answer 1

Answer:

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Explanation:

1) Embryo sac is the female gametophyte of angiosperm plants.

2) It has seven cells and eight nuclei at its fully-matured stage.

3) There are two synergids and three antipodals present in a typical embryo sac.

4)Synergids are present on the adjacent sides of the egg cell and guide pollen tube entrance in the embryo sac. 

5)They regulate the arrest of pollen tube growth in embryo sac and pollen tube discharge.

6)Antipodals are three nutritive cells present at the chalazal end of the embryo sac. They get degenerated when the embryo becomes fully-matured.