Select the appropriate options with reference to post fertilisation changes in angiosperms.

A. Inner integument of ovule develops into tegmen.

B. Ovary wall forms pericarp

C. Ovule forms fruit

D. Zygote forms endosperm

E. Outer integument of ovule develops into Testa

Choose the correct answer from the options given below:

A, B, E only

The correct answer is Option (2): A, B, E only

The provided statements correctly describe the post-fertilization events in angiosperms. These events are as follows:

Formation of endosperm from the primary endosperm cell: The endosperm is a nutrient-rich tissue that develops from the fusion of one sperm cell with two polar nuclei. It provides nourishment to the developing embryo.

Formation of embryo from zygote: The zygote, resulting from the fertilization of the egg cell by a sperm cell, undergoes multiple divisions and differentiations to form the embryonic plant.

Formation of seed from ovule: After fertilization, the ovule develops into a seed, which contains the developing embryo, endosperm, and seed coat.

During seed formation, integuments develop into seed coats. The outer integument forms the testa (outer seed coat), while the inner integument forms the tegmen (inner seed coat).

Formation of pericarp from ovary wall: The ovary wall develops into the pericarp, which is the mature fruit wall surrounding the seed(s).

These events collectively represent the maturation of the ovule into a seed, which is enclosed within a fruit, in the life cycle of angiosperms.