Pairing of homologous chromosomes is known as ________

Options

A. synapsis
B. terminalization
C. fertilization
D. gametization

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term used to describe the pairing of homologous chromosomes. Homologous chromosomes are pairs of chromosomes that consist of one chromosome from each parent.

2. **Identifying the Key Term**: The key term we are looking for is related to the process that occurs during meiosis, where homologous chromosomes come together.

3. **Evaluating the Options**:
- **Option A: Synapsis**: This is the process where homologous chromosomes pair up during meiosis. This is the correct term we are looking for.
- **Option B: Terminalization**: This term refers to the arrangement of chromosomes at the ends of the spindle during meiosis, not the pairing of homologous chromosomes. Thus, it is incorrect.
- **Option C: Fertilization**: This term refers to the fusion of male and female gametes, which is not related to the pairing of homologous chromosomes. Therefore, it is incorrect.
- **Option D: Gametization**: This is not a standard term used in the context of chromosome pairing and is also incorrect.

4. **Conclusion**: After evaluating all the options, the correct answer is **synapsis**, as it specifically refers to the pairing of homologous chromosomes during meiosis.

**Final Answer**: Synapsis

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