Slipping of chiasmata towards the ends of bivalent is called :-

Options

A. Terminalisation
B. Diakinesis
C. Interkinesis
D. Heteropycnosis

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the term used for the phenomenon where chiasmata (the points where homologous chromosomes are joined during crossing over) move towards the ends of bivalents (paired homologous chromosomes).

2. **Identifying the Options**: The options provided are:
- A) Terminalization
- B) Diakinesis
- C) Interkinesis
- D) Heterotypic meiosis

3. **Analyzing the Options**:
- **Terminalization**: This term refers to the movement of chiasmata towards the ends of the bivalent during the later stages of meiosis.
- **Diakinesis**: This is the final stage of prophase I of meiosis, where chromosomes condense and become visible, but it does not specifically refer to the movement of chiasmata.
- **Interkinesis**: This is a short resting phase between meiosis I and meiosis II, not related to chiasmata movement.
- **Heterotypic meiosis**: This term does not pertain to the movement of chiasmata.

4. **Conclusion**: Based on the analysis, the correct term for the slipping of chiasmata towards the ends of bivalents is **Terminalization**.

5. **Final Answer**: The slipping of chiasmata towards the ends of bivalent is called **Terminalization**.

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