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प्रश्न
What is self-incompatibility?
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उत्तर
Sexual incompatibility occurs when a pistil with functioning female gametes fails to establish seeds after pollination with viable and fertile pollen capable of fertilizing another pistil. Sexual incompatibility can arise between members of different species or within the same species. The condition is also known as self-incompatibility.
संबंधित प्रश्न
Draw a diagram of a section of a megasporangium of an angiosperm and label funiculus, Micropyle, embryosac and nuclleus.
Describe the structure of its microsporangium.
Fill in the blank:
Male sex cells in plants are called _________.
Compare the characteristic features of insect pollinated and wind pollinated flowers. Explain how the respective features assist in pollination.
Which one of the following is one of the characteristics of self-pollinated flowers?
Exine and intine are the parts of
State the name of the chief pollinating agent against the corresponding plant by choosing from those given in brackets.
Dahlia_______ .
Give one word/term for the following:
Pollination of flowers by insects.
State four features of flowers pollinated by insects.
Put a tick mark (✓) against the correct alternative in the following statements
Vegetative propagation is not observed in:
Name the two types of pollination.
Write different modes of pollination in detail with suitable examples.
Differentiate Between Cross Pollination and Self Pollination:
At which stage pollen grains are shed from the anther in Angiosperms?
What are the different adaptations shown by bird-pollinated flowers?
Choose the correct statement from the following.
Wind pollination is common in ______.
Pollination by water occurs in ______.
A dioecious flowering plant prevents both ______.
Which of the following plant contain unisexual flower?
Insect pollinated flowers are ______.
Which one of these statements is incorrect?
The following statements seem to describe the water-pollinated submerged plants.
Advantage of cleistogamy is:
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
Pollination in water lilies is carried out by ______.
Mention any one example of the anemophilous flower.
Name the following:
Aquatic plants which are anemophilous.
Which one of the following flower is hypohydrophilous?
