Recombination is involved in the process of :

Options

A. cytokinesis
B. spindle formation
C. crossing over
D. chromosome duplication

Answer

**Step-by-Step Solution:**

1. **Understanding Recombination**: Recombination refers to the process by which genetic material is rearranged during cell division, leading to genetic diversity. It is a key mechanism in genetics.

2. **Identifying the Context**: The question asks specifically about the involvement of recombination in various biological processes. We need to analyze the options provided: cytokinesis, spindle formation, crossing over, and chromosome duplication.

3. **Evaluating the Options**:
- **Cytokinesis**: This is the process where the cytoplasm of a parental cell divides into two daughter cells. It does not involve genetic recombination.
- **Spindle Formation**: This refers to the formation of the spindle apparatus during cell division, which helps in the separation of chromosomes. It does not involve recombination.
- **Crossing Over**: This is a process that occurs during prophase I of meiosis where homologous chromosomes exchange segments of genetic material. This results in recombinant chromosomes and is a key aspect of genetic recombination.
- **Chromosome Duplication**: This is the process of making copies of chromosomes before cell division. It does not involve the exchange of genetic material.

4. **Conclusion**: Based on the evaluation of the options, the correct answer is **crossing over**, as it is the only process that involves recombination.

**Final Answer**: Recombination is involved in the process of **crossing over**.

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