What does the filiform apparatus do at the entrance into ovule?

(1) It helps in the entry of pollen tube into a synergid

(2) It prevents entry of more than one pollen tube into the embryo sac

(3) It brings about opening of the pollen tube

(4) It guides pollen tube from a synergid to egg

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level: