Synapsis found in between :-

Options

A. Nonhomologous chromosome
B. Homologous chromosome
C. Nonhomologous and homologous chromosome
D. Chromatids

Answer

### Step-by-Step Solution:

1. **Understanding Synapsis**:
- Synapsis is the process during which homologous chromosomes pair up during meiosis. This pairing is essential for the exchange of genetic material, known as crossing over.

2. **Evaluating the Options**:
- **Option 1: Non-homologous chromosomes**:
- Non-homologous chromosomes do not undergo synapsis as they are not similar in structure or genetic content. Therefore, this option is incorrect.

- **Option 2: Homologous chromosomes**:
- Homologous chromosomes are similar in size, shape, and genetic content. During the zygotene stage of meiosis, these chromosomes undergo synapsis. This is the correct answer as synapsis occurs between homologous chromosomes.

- **Option 3: Non-homologous and homologous chromosomes**:
- This option is misleading because synapsis specifically involves only homologous chromosomes. Thus, this option is also incorrect.

- **Option 4: Chromatids**:
- Chromatids are the two identical halves of a replicated chromosome. They do not undergo synapsis; hence, this option is incorrect as well.

3. **Conclusion**:
- The only option that correctly identifies where synapsis occurs is **Option 2: Homologous chromosomes**.

### Final Answer:
Synapsis is found in between **Homologous Chromosomes**.

---