Science, asked by amankumar5827, 1 year ago

the reproductive part underscore are located in the flower state the change that takes place in the flower after the green into which the ovules.


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Answered by pavanmeena16200366
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♦ After pollination (transfer of pollen grain from anther of stamen to stigma of pistil/carpel), pollen grains give rise to pollen tubes.


♦ Each pollen tube carries two male gametes which travels through the style and finally reach the ovary.


♦ The ovary contains ovules. The gametes enter into the ovules.


♦ Each ovule has an egg cell.


♦ The process of fusion of male and female gametes is called fertilisation.


♦ In the process of fertilisation, one male gamete fuses with the egg to form diploid zygote.


This process is called syngamy.


♦ The other male gamete fuses with two polar nuclei to form triploid primary endosperm nucleus.


This process is called triple fusion.


♦ The process of syngamy and triple fusion take place in embryo sac of the ovule.


♦ These two fusions are together known as double fertilisation.


♦ After fertilisation, zygote develops into embryo.


♦ Primary endosperm nucleus develops into endosperm.


Endosperm provides nutrition to developing embryo.


♦ Ovule changes to seed.


♦ Ovary changes to fruit.


♦ Petals and sepals fall off.




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