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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
Why angiosperm anthers are called dithecous?
Find the odd-one out, giving reason:
Ovary, style, pollen grain, stigma
Which one of the following is one of the characteristics of self-pollinated flowers?
Exine and intine are the parts of
Name of the part of the ovary which gives rise to:
Fruit ______
Give one word/term for the following:
When stigma and anthers do not grow up to the same height, which favors only cross-pollination.
Coelacanth was caught in South Africa. State the significance of the discovery of Coelacanth in the evolutionary history of vertebrates.
Name the two types of pollination.
Describe pollination. How many types of pollinations are found?
Write different modes of pollination in detail with suitable examples.
Differentiate Between Cross Pollination and Self Pollination:
What are the adaptations which are required in cross-pollinated
Give an account of various abiotic agencies used in pollination along with their adaptations for pollination.
For which of the following attractants and rewards are required?
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by ______.
Both chasmogamous and cleistogamous flowers are present in ______.
Triple fusion in Capsella bursa pastoris is fusion of male gamete with ______.
Which of these is a condition that makes flowers invariably autogamous?
Which of the following plant contain unisexual flower?
During Hybridization process anther of the bisexual flower is removed before it dehisces is called ______.
The flower which does not open at all are called ______.
Which one of the following may require pollinators, but is genetically similar to autogamy?
Advantage of cleistogamy is:
Consider the following statements depicting adaptation of flowers to carryout successful pollination.
- Stigma is long, sticky and unwettable.
- Sepals, petals or perianth (if present) have waxy coating.
- Stamens with long filament and versatile anthers.
- Tubular corolla is seen.
- Flowers are noctumal.
Which of the above statements clearly depict hydrophily?
Which of the following floral adapation are adapted by hydrophilous flowers?
Name the pollinating agent of a flowering plant with large and coloured flowers with sticky stigma. State one characteristic feature of the pollen grains produced in such flowers.
Comparatively a large amount of pollen grains are wasted during ______.
In sea grass, pollens are long, ribbon like and without exine exhibiting ______ pollination.
