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प्रश्न
'Formation of primary endosperm nucleus is called triple fusion'. Give reason
उत्तर
In angiosperms, one of the two male gametes fuses with the diploid secondary nucleus to form a triploid primary endosperm nucleus. This process is called triple fusion.
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संबंधित प्रश्न
Triple Fusion involves:
(i) Fusion of one male, gamete with female gamete
(ii) Fusion of tube nucleus with generative nvcleus
(iii) Fusion of two polar nuclei.
(iv) Fusion of second male gamete with two polar nuclei
What are the advantages of the following in the flower to the plant concerned?
Protruding and easily movable anthers
Given ahead is a diagrammatic sketch of the sectional view of a germinating pollen grain. Study the same and then answer the question that follows:
Name the parts labelled 1, 2, 3, 4 and 5.
Given ahead is a diagrammatic representation of the process of fertilization. Study the same and then answer the question that follows:
What is the function of the synergids?
Even though each pollen grain has 2 male gametes, why at least 20 pollen grains are required to fertilize 20 ovules in a particular carpel?
What is polyembryony? How it can commercially exploited.
By which of the following the megasporangium proper of an angiosperm ovule is represented?
Double fertilization is fusion of ______.
Double fertilization is characteristic of ______.
Name the following:
A diploid nucleus in central cell of embryo sac in plants.
