Advertisements
Advertisements
Question
What are chasmogamous flowers?
Advertisements
Solution
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.
APPEARS IN
RELATED QUESTIONS
Explain the post-pollination events leading to seed production in angiosperms.
Why angiosperm anthers are called dithecous?
The transfer of pollen grains from the anther to the stigma of the same or of another flower of the same kind is known as ______.
Write two ways in which pollination may occur in plants.
Fill in the blank:
Male sex cells in plants are called _________.
Find the odd-one out, giving reason:
Ovary, style, pollen grain, stigma
Can a unisexual flower be self pollinated?
Compare the characteristic features of insect pollinated and wind pollinated flowers. Explain how the respective features assist in pollination.
Exine and intine are the parts of
Fill in the blanks with suitable words.
Different timings for the maturation of gynoecium and androecium is called ________.
Mention any two contrivances in flowers which favour cross-pollination.
Answer the following question.
Write the difference in the characteristics of the progeny produced as a result of the two processes.
Put a tick mark (✓) against the correct alternative in the following statements
Pollen is produced in the
Differentiate Between Cross Pollination and Self Pollination:
Very short answer type question:
What is hydrophily?
Mention various adaptations for wind pollination.
What are the different adaptations shown by bird-pollinated flowers?
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
Pollination occurs in ______.
Chief pollinators of agricultural crops are ______.
Even in absence of pollinating agents seed-setting is assured in ______.
Which of these is a condition that makes flowers invariably autogamous?
The flower which possesses both androecium and gynoecium is called perfect or ______.
Advantage of cleistogamy is:
Correct definition of pollination is ______
Match the Column I with Column II.
| Column I | Column II |
| A. Pea | (i) Xenogamy |
| B. Jawar | (ii) Epihydrophily |
| C. Maize | (iii) Anemophily |
| D. Vallis | (iv) Bisexual |
| E. Cannabis | (v) Geitonogamy |
When and why does a plant breeder employ the emasculation technique?
