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प्रश्न
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?
उत्तर
Role of Stigma:
During pollination, pollen grain is transferred to the stigma. Pollen grains are germinated only in the event of it falling on the stigma. Post germination, the pollen tube grows through the stigma, reaching the ovary in order for the egg cell to be fertilized.
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संबंधित प्रश्न
Where and how does triple fusion take place?
Explain the events up to double fertilisation after the pollen tube enters one of the synergids in an ovule of an angiosperm.
Differentiate between outbreeding and outcrossing.
Give one word/term for the following:
When pollen grains of a flower reach the stigma of the same flower.
What are the advantages of the following in the flower to the plant concerned?
Protruding and easily movable anthers
The question has four options. Choose the correct answer:
One male gamete fuses with the egg and forms a diploid zygote. This process is called
Identify the incorrect pair
Identify the CORRECT statement with reference to cellular endosperm.
Double fertilization and triple fusion were discovered by ______.
Can an unfertilised, apomictic embryo sac give rise to a diploid embryo? If yes, then how?
