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  4. Through which cell of the embryo sac, does the pollen tube enter the embryo sac?

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Q. Through which cell of the embryo sac, does the pollen tube enter the embryo sac?

JIPMERJIPMER 2007

Solution:

Egg apparatus is present towards the micropylar end of an ovule. Egg apparatus has two lateral synergid cells and one centrally located egg cell. During entry of pollen tube-within the ovule synergid cells become disintegrate and provide path for entry of pollen tube within the chamber of embryo sac.