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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?

AIPMTAIPMT 2005Sexual Reproduction in Flowering Plants

Solution:

The pollen tube enters into the embryo sac at the micropylar end. This entry may be between egg and one synergid or between wall of embryo sac and synergid or through one synergid. So one synergid is always degenerated to allow the entry of the pollen tube.