Question

The events in pollen-pistil interaction includes all, except

• A. Pollen deposition on the stigma until pollen tubes reach the ovary.
• B. Release of pollen from one flower to the formation of pollen tubes.
• C. Pollen deposition on the stigma until the formation of pollen tubes.
• D. Pollen deposition on the stigma until pollen tubes enter the ovule.

Answer 1

Answer: (A)

The process of release of pollen grains from a flower and its deposition on the stigma is called pollination. Pollen-pistil interaction involves recognition of pollen, promotion or inhibition of pollen, the formation of the pollen tube and entry of pollen tube to the ovary and finally into the ovule.