Question

Name the two post fertilization events in sexual reproduction.

Answer 1

Fertilization is the fusion of the male gamete and female gamete to form a zygote in plants. In flowering plants, the fertilization is consequently termed as double fertilization as the two male nuclei in the pollen grain fuse with the egg and the polar nuclei to form the diploid zygote and the triploid endosperm.

Post Fertilization changes in a Flower -

Once the fertilization occurs, there are many changes that occur in the structure of the flower.

• The ovary consequently becomes the fruit.
  
• The ovule consequently becomes the seed.
  
• The integument of the ovules become the seed coat of the seed.
  
• The sepals of the calyx and the petals of the corolla fall off.