1.

Describe the post fertilisation changes in a flower.

Answer»

After fertilization the ovule converts into the seed and the whole ovary develops into a complete fruit. The petals and sepals dried and fall off. The fate of other parts is 

  • The ovary wall forms the pericarp of the fruit. It may become fleshy, juicy or dry.
  • The integument of the ovule is converted into .seed coat. The outer integument forms the tesla and the inner into tegmen. 
  • Egg of the ovule divides meiotically and forms multicellular diploid embryo. 
  • Polar nuclei as a result of triple fusion from endosperm. It accumulates food and functions as a nutritive tissue for the developing embryo.


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