One of the following process does not lead to the formation of clones. Thus is :

Options

A. fission
B. fertilisation
C. fragmentation
D. tissue culture

Answer

**Step-by-Step Solution:**

1. **Understanding Clones**: Clones are genetically identical organisms that arise from a single parent organism through asexual reproduction.

2. **Identifying the Processes**: The question presents four processes: Fission, Fertilization, Fragmentation, and Tissue Culture. We need to determine which of these does not lead to the formation of clones.

3. **Analyzing Each Process**:
- **Fission**: This is an asexual reproduction process where a single organism divides into two or more parts, leading to the formation of genetically identical offspring (clones).
- **Fertilization**: This is a sexual reproduction process involving the fusion of male and female gametes, resulting in a zygote. Since it involves two parents, the offspring are not clones but a genetic combination of both parents.
- **Fragmentation**: This is another asexual reproduction method where an organism breaks into fragments, and each fragment can develop into a new organism, resulting in clones.
- **Tissue Culture**: This technique involves growing cells or tissues in a controlled environment, leading to the production of genetically identical cells or tissues (clones) from a single parent.

4. **Conclusion**: Among the processes analyzed, Fertilization is the only one that does not lead to the formation of clones, as it involves genetic contributions from two parents.

5. **Final Answer**: The process that does not lead to the formation of clones is **Fertilization**.

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