CBSE Class 12-science Biology Double Fertilisation, Post Fertilisation: Structures and Events

• describe double fertilization in angiosperm
• why zygote dominant sometime in fertilized ovule
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• post fertilization events in flowers
• explain double fertilisation and give its significance
• What is post fertilisation? Define in short?  
• what is pollen pistil interaction? describe in detail
• In the given figure of a dicot embryo, label the parts (A) and (B) and give their functions.      

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