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प्रश्न
What are chasmogamous flowers?
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उत्तर
There are two types of flowers present in plants, namely Oxalis and Viola.
Both chasmogamous and cleistogamous flowers are present in plants. Chasmogamous flowers have exposed anthers and stigmata, similar to the flowers of other species.
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संबंधित प्रश्न
As a senior biology student you have been asked to demonstrate to the students of secondary level in your school, the procedure(s) that shall ensure cross-pollination in a hermaphrodite flower. List the different steps that you would suggest and provide reasons for each one of them.
Describe the characteristic features of wind pollinated flowers.
What is meant by emasculation?
Enlist advantages and disadvantages of cross pollination
Add a note on pollination mechanism in Salvia.
Name two characteristics of flowers in which pollination occur by wind.
Fill in the blank:
Male sex cells in plants are called _________.
Fill in the blanks with suitable words.
_______ is a water-pollinated flower.
Give one word/term for the following:
Pollination of flowers by birds.
In bisexual flowers, maturation of gynoecium before androecium is known as ______.
Differentiate between geitonogamy and xenogamy (allogamy).
Coelacanth was caught in South Africa. State the significance of the discovery of Coelacanth in the evolutionary history of vertebrates.
Put a tick mark (✓) against the correct alternative in the following statements
Vegetative propagation is not observed in:
What are the adaptations which are required in cross-pollinated
At which stage pollen grains are shed from the anther in Angiosperms?
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
Both chasmogamous and cleistogamous flowers are present in ______.
Feathery stigma occurs in ______.
Plants with ovaries having only one or a few ovules are generally pollinated by ______.
Which of the following is not a water pollinated plant?
Which of these is a condition that makes flowers invariably autogamous?
In some plants anther and stigma mature at the same time this condition is called ______.
Which one of the following may require pollinators, but is genetically similar to autogamy?
Choose the correct statement from the following:
What is ornithophily?
Describe any three adaptations in anemophilous flowers.
Briefly discuss any two methods by which plants avoid self-pollination.
