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Pollen Tube

Class 10 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceWhat can be the most suitable reason for fertilisation failing even after pollination?Class 10World of LivingReproductionLevel 26Expert ScienceIf pollen reaches the stigma but does not germinate, why will fertilization stop?Class 10World of LivingReproductionLevel 27Hard ScienceWhy is it important that the male gamete reaches the egg through the pollen tube?Class 10World of LivingReproductionLevel 27Expert ScienceIf pollination occurs but pollen tube does not reach the ovule why will seed formation stop?Class 10World of LivingReproductionLevel 25Expert ScienceWhy is a pollen tube necessary for fertilisation even after pollination?Class 10World of LivingReproductionLevel 26Hard ScienceIf pollen grains reach the stigma but pollen tube does not form why will fertilisation be affected?Class 10World of LivingReproductionLevel 25Hard ScienceAfter pollination which structure most directly helps carry the male gamete for fertilisation?Class 10World of LivingReproductionLevel 25Hard ScienceWhy is formation of the pollen tube necessary for fertilization?Class 10World of LivingReproductionLevel 27Medium ScienceWhy may fertilisation not occur every time even after successful pollination?Class 10World of LivingReproductionLevel 26Medium ScienceIf pollen grains reach the stigma but pollen tube does not form why can fertilisation stop?Class 10World of LivingReproductionLevel 26Medium ScienceWhy does the male gamete in a flower need a pollen tube instead of reaching the ovule directly?Class 10World of LivingReproductionLevel 25Medium ScienceWhat is the main function of the pollen tube?Class 10World of LivingReproductionLevel 25Medium ScienceWhat is the function of the pollen tube?Class 10World of LivingReproductionLevel 27Easy ScienceWhat is the main function of the pollen tube?Class 10World of LivingReproductionLevel 26Easy ScienceOn what basis is pollen-tube growth towards an ovule different from ordinary phototropism?Class 10World of LivingControl and CoordinationLevel 18Medium ScienceIf phototropism is normal in a plant but chemotropism is blocked, which process may be affected?Class 10Control and CoordinationPlant hormonesLevel 17Medium ScienceWhy is the growth of a pollen tube towards an ovule considered directional?Class 10World of LivingControl and CoordinationLevel 17Medium ScienceA plant shows normal phototropism but the pollen tube does not grow towards the ovule. Which mechanism may be specifically affected?Class 10World of LivingControl and CoordinationLevel 17Hard ScienceGrowth of a pollen tube towards an ovule is based on what type of signal?Class 10World of LivingControl and CoordinationLevel 18Medium ScienceGrowth of the pollen tube towards the ovule occurs due to what?Class 10World of LivingReproductionLevel 17Medium