The phenomenon of dedifferentiation

Options

A. regaining the capacity to divide mitotically by differentiated cells
B. the event of losing the ability to divide by dedifferentiated cells
C. regaining the capacity to divide meiotically by differentiated cells
D. regaining the capacity to divide meiotically by redifferentiated cells

Answer

### Step-by-Step Text Solution for the Question on Dedifferentiation

1. **Definition of Dedifferentiation**:
- Dedifferentiation is a biological process where specialized, differentiated cells revert to a less specialized, more primitive state. This is not the same as typical cell division processes like mitosis or meiosis; instead, it involves a reversal of differentiation.

2. **Mechanism of Dedifferentiation**:
- The process involves the regaining of the ability to divide mitotically. During dedifferentiation, cells lose their specialized functions and characteristics, allowing them to divide again. This is crucial for processes such as tissue regeneration and repair.

3. **Differentiation vs. Dedifferentiation**:
- Differentiation is the process by which unspecialized cells develop into specialized cells with distinct functions. Conversely, dedifferentiation is the reverse process, where specialized cells lose their specific functions and characteristics.

4. **Correct Options Analysis**:
- The question presents several options regarding dedifferentiation:
- **Option 1**: Regaining the capacity to divide mitotically by differentiated cells.
- This option is correct because dedifferentiated cells can regain the ability to undergo mitosis.
- **Option 2**: Losing the ability to divide the dedifferentiated cells.
- This option is incorrect as dedifferentiated cells do not lose their ability to divide.
- **Option 3**: Regaining the capacity to divide meiotically by differentiated cells.
- This option is incorrect because meiosis is not involved in the dedifferentiation process.
- **Option 4**: Regaining the capacity to divide meiotically by redifferentiated cells.
- This option is also incorrect as redifferentiated cells do not revert to a state where they can undergo meiosis.

5. **Conclusion**:
- Based on the analysis, the correct answer is **Option 1**: Regaining the capacity to divide mitotically by differentiated cells.