Advertisements
Advertisements
Question
Autogamy can occur in a chasmogamous flower if ______.
Options
Pollen matures before maturity of ovule
Ovules mature before maturity of pollen
Both pollen and ovules mature simultaneously
Both anther and stigma are of equal lengths.
Solution
Autogamy can occur in a chasmogamous flower if both pollen and ovules mature simultaneously.
APPEARS IN
RELATED QUESTIONS
Why do moss plants produce very large number of male gametes? Provide one reason. What are these gametes called?
Mention two strategies evolved to prevent self-pollination in flowers.
Describe the advantages and disadvantages of cross-pollination to the plant.
Give four adaptations shown by flowers pollinated by wind.
Coelacanth was caught in South Africa. State the significance of the discovery of Coelacanth in the evolutionary history of vertebrates.
Autogamy can occur in a chasmogamous flower if ______.
Even in absence of pollinating agents seed-setting is assured in ______.
Male and female flowers are present on different plants (dioecious) to ensure xenogamy, in ______.
In the dioecious aquatic plant shown, identify the characteristics of the male flowers that reach the female flowers for pollination:
Size of the flower | Colour of flower | The characteristic feature of pollen grain | |
A | small | brightly coloured | Lightweight and non-sticky |
B | large | colourless | large and sticky |
C | small | white | small, covered with mucilage |
D | large | colourless | non-sticky |
Pollination refers to the