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Question
Give a concise account of the steps involved in the fertilization of an angiosperm plant.
Solution
Steps involved in fertilization of angiospermic plant:
- Germination of pollen grain on stigma.
- Formation of pollen tube in stigma.
- Growth of pollen tube inside the style.
- The direction of the pollen tube towards the micropyle of the ovule.
- Entry of pollen tube into the synergid of embryo sac.
- Discharge of male gametes from the pollen tube.
- Fusion of male gamete with egg cell (syngamy)
- Fusion of second male gamete with polar nuclei (triple fusion/double)
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Long Answer Question:
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