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Solution


Q.

A ______ fuses with a ______ in generative fertilisation.
1 Secondary nucleus, polar nucleus  
2 Polar nucleus, female gamete  
3 Male gamete, female gamete  
4 All of the above  

Ans.

(3)

In double fertilisation, triple fusion (vegetative fertilisation) and syngamy (generative fertilisation) occur. In generative fertilisation, a male gamete fuses with a female gamete and forms diploid zygote.