Question

Which one of the following statements regarding post-fertilization development in flowering plants is incorrect?
A. Ovary develops into fruit
B. Zygote develops into an embryo
C. Central cells develop into the endosperm
D. Ovules develop into the embryo sac

Answer 1

The processes that take place after the fertilization mainly the growth and development of the fertilized product, that is diploid zygote which is formed in all sexually reproducing organisms. Flowering plants come under the angiosperms.

Complete answer: Post-fertilization events include syngamy and embryogenesis. A biological process by which diploid or haploid precursor cells undergo cell division and differentiation to develop into mature haploid gametes. In plants, fertilization can be defined as the fusion of the male and female gamete for the formation of a diploid zygote. After fertilization, a series of events occurs in the zygote to develop into a seed. The major events in post-fertilization of a flower mainly include the development of endosperm and embryo, maturation of ovules into seeds, and ovary into a fruit.
Post-fertilization is a series of events that take place after the process of fertilization to develop a seed from an ovule and a fruit from an ovary.
The following are events which occur in post-fertilization:-
-Endosperm Development: During the time of fertilization, a type of tissue which is present in the seeds of flowering plants.
-Embryogeny: The process of growth and development of an embryo from a zygote in the flowering plants.
Hence, the correct answer is option (D), i.e. Ovules develop into the embryo sac.

Note: Embryo development stages are the same in both monocot and dicot plants. In the dicot plant embryo, an embryonal axis and two cotyledons are present. The two parts of the embryonal axis are epicotyl which is situated above the cotyledon level while hypocotyl located below the cotyledon level.