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Home  >>  JEEMAIN and NEET  >>  Biology

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

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

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

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

(4) It brings about opening of the pollen tube
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