Which one of the following pollinations is autogamous?
Geitonogamy
Xenogamy
Chasmogamy
Cleistogamy
What are chasmogamous flowers? Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer.
Self-incompatibility is a device for
$I$. Ensuring cross-pollination
$II$. Preventing self-pollination
$III$. Ensuring self-fertilisation
$IV$. Genetic control for self-fertilisation
Choose the correct statements from those given above
Pollen robbers
Which type of pollen grains are required for wind pollination ?
What type of pollination takes place in Vallisneria?