In the life cycle of a typical dicot plant, arrange the following events in correct sequence.
a) Redifferentiation. b) Differentiation. c) Dedifferentiation. d) Divisions in primary meristem.

Options

A. d-b-c-a
B. b-a-d-c
C. d-c-b-a
D. a-b-c-d

Answer

To arrange the events in the life cycle of a typical dicot plant in the correct sequence, we can follow these steps:

1. **Divisions in Primary Meristem (d)**: The life cycle of a dicot plant begins with the division of cells in the primary meristem. The primary meristem is responsible for the primary growth of the plant, which occurs at the tips of roots and shoots. This is where the initial cell division takes place.

2. **Differentiation (b)**: After the cells have divided, they undergo differentiation. This process involves the cells maturing and developing specific functions, such as becoming root cells, leaf cells, or stem cells. Differentiation is crucial for the formation of various tissues and organs in the plant.

3. **Dedifferentiation (c)**: In certain conditions, differentiated cells can regain the ability to divide. This process is known as dedifferentiation. For example, some mature cells in the cambium can revert to a meristematic state, allowing them to divide again.

4. **Redifferentiation (a)**: Finally, after dedifferentiation, the cells can undergo redifferentiation. This means that the cells that regained the ability to divide will again mature and take on specific functions, completing the cycle.

Thus, the correct sequence of events is:
1. Divisions in Primary Meristem (d)
2. Differentiation (b)
3. Dedifferentiation (c)
4. Redifferentiation (a)