Write one significant application of monoclonal antibodies.

Explanation

**Step-by-Step Solution:**

1. **Understanding Monoclonal Antibodies**:
- Monoclonal antibodies are antibodies that are identical and produced by a single clone of cells. They are specific to a single antigen, unlike polyclonal antibodies which can target multiple antigens.

2. **Production of Monoclonal Antibodies**:
- These antibodies are created using a technique called hybridoma technology, which involves fusing a specific type of white blood cell (B-cell) that produces antibodies with a myeloma (cancer) cell. This fusion creates a hybrid cell that can produce large quantities of a specific antibody.

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