NEET2013BotanySexual Reproduction in Flowering PlantsActual
Which one of the following statements is correct?
Options
- ACleistogamous flowers are always autogamous.
- BXenogamy occurs only by wind pollination.
- CChasmogamous flowers do not open at all.
- DGeitonogamy involves the pollen and stigma of flowers of different plants.
Correct answer
A. Cleistogamous flowers are always autogamous.
Step-by-step solution
Cleistogamous flowers are the flowers which are bisexual and never opens. Xenogamy occurs by hydrophily, anemophily, entomology and other pollinating agents. Chasmogamous flowers are open flowers which shows both self-pollination and cross pollination. Geitonogamy is type of self-pollination in which pollen of one flower get deposited on the stigma of other flower belonging to same plant. Related Theory Sometimes bisexual flowers remain closed and never open: such flowers are called cleislogamous. In such flowers,