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प्रश्न
In majority of plants pollen is liberated at
पर्याय
1 celled stage
2 celled stage
3 celled stage
4 celled stage
उत्तर
2 celled stage
संबंधित प्रश्न
Double fertilization is reported in plants of both, castor and groundnut. However, the mature seeds of groundnut are non-albuminous and castor are albuminous. Explain the post fertilization events that are responsible for it.
What is triple fusion?
Give one word/term for the following:
When pollen grains of a flower reach the stigma of the same flower.
Given ahead is a diagrammatic representation of the process of fertilization. Study the same and then answer the question that follows:
What part does the stigma play in the process of fertilisation?
Name the scientists who have contributed to the following:
Discovered double fertilization.
The question has four options. Choose the correct answer:
The study of fruits is known as
The question has four options. Choose the correct answer:
When only ovary forms fruits they are known as
The seed is a fertilized _______.
Match the following
| I) | External fertilization | i) | pollen grain |
| II) | Androecium | ii) | anther wall |
|
III) |
Male gametophyte | iii) | algae |
| IV) | Primary parietal layer | iv) | stamens |
‘Pollination in Gymnosperms is different from Angiosperms’ – Give reasons.
Explain the development of a Dicot embryo
By which of the following the megasporangium proper of an angiosperm ovule is represented?
By which of the following double fertilization is exhibited?
Through which route the pollen tube can enter the ovule?
Fusion of one of the male gametes with egg nucleus is referred to as ______.
______ have the smallest seeds in the plant kingdom.
Name the part of gynoecium that determines the compatible nature of pollen.
In the diagram given below, show the path of a pollen tube from the pollen on the stigma into the embryo sac. Name the components of egg apparatus.
Which are the three cells found in a pollen grain when it is shed at the three celled stage?
