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Question

Describe the various steps involved in the sexual reproduction in animals. Draw labelled diagrams to show the fertilisation of an ovum (or egg) by a sperm to form a zygote.

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Solution

The various steps involved in the sexual reproduction in animals are as follows:

  • Male gametes called sperms are produced by the male parent.
  • Female gametes called eggs are produced by the female parent.
  • The sperm fuses with the egg to form the zygote. This process is termed as fertilisation.
  • The zygote divides repeatedly to form a large number of cells. Ultimately it grows and develops into a baby.


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