Q. What does the filiform apparatus do at the entrance into ovule?
A) It guides pollen tube from a synergid to egg
B) It helps in the entry of pollen tube into a synergid
C) It prevents entry of more than one pollen tube into the embryo sac
D) It brings about opening of the pollen tube
Explanation
[Solution from source] The filiform apparatus, the finger-like wall ingrowths at the micropylar tip of the synergids, guides the pollen tube into a synergid. It does not lead the tube from the synergid to the egg; the male gametes are released inside the synergid. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.