Advertisements
Advertisements
प्रश्न
What is self-incompatibility?
उत्तर
Self-incompatibility is a genetic mechanism in angiosperms that prevents self-pollination. It develops genetic incompatibility between individuals of the same species or between individuals of different species. The pollen grains of an anther do not germinate on the stigma of the same flower.
APPEARS IN
संबंधित प्रश्न
Why angiosperm anthers are called dithecous?
Can cross-pollination occur in cleistogamous flowers? Give reason for your answer.
Enlist advantages and disadvantages of cross pollination
Define the term Pollinating.
Give an account of any two biotic agents for pollination along with their adaptations.
Autogamy can occur in a chasmogamous flower if ______.
Which of the following plant contain unisexual flower?
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
Which type of pollination does Figure 12.1 indicate?
