Question

describe the post fertilization changes in a flower. ( from botany inter1st workbook answer me )

Answer 1

In case of flowering plants, that is Angiosperms double fertilization takes place, in which one male gamete fuses with the egg and the other second fuses with secondary nucleus to form Primary Endosperm Nucleus, this is called Double fertilization. It induces various changes in the flowers.

Explanation:

• First, the accessory structures, that is the sepals, petals and stamens falls of the flowers.
• Among these structure only pistil remains intact.
• The zygote starts to grow into an embryo.
• The ovule starts to develop into seed.
• Ovary starts developing into fruits.
• The protective wall of the ovary also develops into an another type of wall for the protection of fruit, and it is called pericarp.