Question

Pollen tube, after reaching the ovary __________.

• A. Enters the ovule through the micropyle
• B. May enter the ovule through the micropyle
• C. Enters embryo sac through micropylar end only
• D. Chemotactic movement of pollen tube towards synergid

Answer 1

The correct option is A Enters the ovule through the micropyle

After reaching the ovary, the pollen tube enters the ovule through the micropyle and then moves to one of the synergids through the filiform apparatus. It guides the entry of the pollen tube. When pollen tube enters the ovule through micropyle is termed as porogamy. For example Lily.