Match the column-I with column-II and select the correct answer:
`{:(,"Column-I",,"Column-II"),("A.","Pachytene","i.","Chromosome condensation"),("B.","Zygotene","ii.","Chiasma visible"),("C.","Diplotene","iii.","Terminalization"),("D.","Leptotene","iv.","Gene exchange"),("E.","Diakinesis","v.","Synapsis"):}`

Options

A. A-i, B-ii, C-iii, D-iv, E-v
B. A-iv, B-v, C-ii, D-i, E-iii
C. A-iii, B-iv, C-v, D-ii, E-i
D. A-ii, B-iii, C-iv, D-i, E-v

Answer

To solve the matching question between Column-I and Column-II, we need to identify the correct relationships based on the stages of meiosis and their characteristics. Let's go through each item step by step.

### Step-by-Step Solution:

1. **Pachytene**:
- **Definition**: This is the third stage of prophase I in meiosis.
- **Key Feature**: During this stage, crossing over occurs between non-sister chromatids, leading to genetic exchange.
- **Match**: This corresponds to **iv. Gene exchange**.

2. **Zygotene**:
- **Definition**: This is the second stage of prophase I in meiosis.
- **Key Feature**: Homologous chromosomes begin to pair up, a process known as synapsis.
- **Match**: This corresponds to **v. Synapsis**.

3. **Diplotene**:
- **Definition**: This is the fourth stage of prophase I in meiosis.
- **Key Feature**: Chiasmata (the points where crossing over has occurred) become visible during this stage.
- **Match**: This corresponds to **ii. Chiasma visible**.

4. **Leptotene**:
- **Definition**: This is the first stage of prophase I in meiosis.
- **Key Feature**: Chromosomes start to condense and become visible.
- **Match**: This corresponds to **i. Chromosome condensation**.

5. **Diakinesis**:
- **Definition**: This is the final stage of prophase I in meiosis.
- **Key Feature**: The synaptonemal complex disassembles, and the chromosomes are fully condensed and ready for metaphase.
- **Match**: This corresponds to **iii. Terminalization**.

### Final Matches:
- A. Pachytene → iv. Gene exchange
- B. Zygotene → v. Synapsis
- C. Diplotene → ii. Chiasma visible
- D. Leptotene → i. Chromosome condensation
- E. Diakinesis → iii. Terminalization

### Correct Answer:
The correct answer is the second option where:
- A matches with iv
- B matches with v
- C matches with ii
- D matches with i
- E matches with iii