Identify the different stages in embryogenesis in the given diagram A, B, C, D, E, F and G.

A–2-celled stage, B–Globular embryo, C–Heart-shaped embryo, D–Mature embryo, E–Suspensor, F–Radicle, G–Cotyledon

The correct answer is Option (3) -A–2-celled stage, B–Globular embryo, C–Heart-shaped embryo, D–Mature embryo, E–Suspensor, F–Radicle, G–Cotyledon

The embryo in flowering plants develops at the micropylar end of the embryo sac, where the zygote is located. In most cases, the zygote undergoes division only after a certain amount of endosperm, a nutritive tissue, is formed. This adaptation ensures that there is sufficient nutrition available for the developing embryo.

Although seeds of different plant species can vary greatly in their structure and size, the early stages of embryo development, known as embryogeny, exhibit similarities between monocotyledons (plants with one seed leaf or cotyledon) and dicotyledons (plants with two seed leaves or cotyledons).

In a dicotyledonous embryo, the zygote first develops into the proembryo. Subsequently, it goes through several stages, including the globular stage, where the embryo takes on a rounded shape, the heart-shaped stage, where the embryo begins to resemble a heart, and finally, the mature embryo stage.