Class 12th Biology 2017 Set1 Delhi Board Paper Solution
Prepare a flow chart to depict the post-pollination events leading to viable seed production in a flowering plant.
(c)
Pollen grain germinates on stigma
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Pollen tube carrying the male gamates reaches the ovule
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It discharges the male gamates near the eggs
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Syngamy/Fusion of male gamate with egg occurs to form zygote
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Triple fusion/fusion of male gamate with two polar nuclei to form PEN (Primary Endosperm Nucleus)
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Ovule develops into seed
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