Which of the sequences is correct for embryogenesis in dicots?

Options

A. Zygote`to` Globular stage `to` Proembryo `to` Heat shaped stage `to` Matured embryo
B. Zygote `to` Heart shaped stage `to` Globular stage `to` Matured embryo
C. Zygote`to` Proembryo `to` Heart shaped stage `to `Globular stage `to` Matured embryo
D. Zygote `to` Proembryo `to` Globular stage `to` Heart shaped stage `to` Matured embryo

Answer

To determine the correct sequence of embryogenesis in dicots, we need to understand the stages involved in the formation of the embryo. Here is a step-by-step breakdown of the process:

### Step-by-Step Solution:

1. **Zygote Formation**: The process begins with the fertilization of the egg cell by one male gamete, resulting in the formation of a zygote.

2. **Proembryo Stage**: The zygote develops into a proembryo. This is the initial stage of the embryo development and is characterized by the formation of a two-celled structure.

3. **Globular Stage**: The proembryo then develops into a globular stage. At this stage, the embryo takes on a rounded shape resembling a globe.

4. **Heart-shaped Stage**: Following the globular stage, the embryo develops into a heart-shaped stage. This stage is characterized by the formation of lobes that give it a heart-like appearance.

5. **Mature Embryo**: Finally, the heart-shaped embryo matures into a fully developed embryo, which is ready to give rise to a new plant body.

### Correct Sequence:
- **Zygote → Proembryo → Globular Stage → Heart-shaped Stage → Mature Embryo**

### Conclusion:
The correct sequence of embryogenesis in dicots is: **Zygote → Proembryo → Globular Stage → Heart-shaped Stage → Mature Embryo**.

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