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Pre-fertilisation is the process that occurs before the actual fertilization, i.e.

Pre-fertilisation is the process that occurs before the actual fertilization, i.e. the process before the fusion of gametes. There are two events that occur before fertilization:

It is the process of formation of gametes. Male gametes are formed inside the anther. The steps involve microsporogenesis and microgametogenesis. The female gametes are formed inside the ovules and involve two steps- megasporogenesis and megagametogenesis. The structures and the process is explained below.

Let us have a look at the details of the structures involved in the process of gametogenesis.