Fertilisation, Development and Birth in Animals · NCERT Biology

Fertilisation is defined as the process of:

  1. Formation of gametes in gonads
  2. Fusion of male and female gametes
  3. Development of the embryo post-zygote
  4. Formation of the zygote nucleus only
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Correct answer: Fusion of male and female gametes

Fertilisation involves the fusion of male and female gametes. This fusion results in the formation of a diploid zygote.

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