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प्रश्न
Why angiosperm anthers are called dithecous?
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उत्तर
Typical angiosperm anther is broad, terminal and bilobed. Each lobe of the anther has two pollen sacs which fuse (at maturity) to form a single chamber called the thecus, so it is called dithecous.
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संबंधित प्रश्न
List the different types of pollination depending upon the source of pollen gain.
Make a list of any three outbreeding devices that flowering plants have developed and explain how they help to encourage cross-pollination.
Name two characteristics of flowers in which pollination occur by wind.
Select and write the most appropriate answer from the given alternatives for the following subquestion:
A versatile anther is an adaptation for _______ type of pollination.
Can a plant flowering in Mumbai be pollinated by pollen grains of the same species growing in New Delhi? Provide explanations to your answer.
Mention various adaptations for wind pollination.
Wind pollination is common in ______.
Which of these is a condition that makes flowers invariably autogamous?
Which of the following plant contain unisexual flower?
Mention any one example of the hydrophilous flower.
