Antibodies produced by a group of identical B-cells against a single epitope of an antigen is called

Options

A. Polyclonal antiboides
B. Monoclonal antibodies
C. Antihapten antibodies
D. Somaclonal antibodies

Answer

To answer the question, "Antibodies produced by a group of identical B-cells against a single epitope of an antigen is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding B-cells**: B-cells are a type of white blood cell that plays a crucial role in the immune response. They produce antibodies to fight against pathogens.

2. **Identical B-cells**: The question specifies "a group of identical B-cells." This means that all the B-cells in this group are clones of a single parent B-cell. They produce the same type of antibody.

3. **Single Epitope**: An epitope is a specific part of an antigen that is recognized by antibodies. The question mentions that these identical B-cells produce antibodies against a single epitope, indicating that all antibodies produced are targeting the same specific part of the antigen.

4. **Monoclonal Antibodies**: The antibodies produced by these identical B-cells against a single epitope are referred to as "monoclonal antibodies." This term is derived from the fact that they come from a single clone of B-cells (hence "mono" meaning one).

5. **Distinction from Polyclonal Antibodies**: It is important to note that if antibodies were produced by different B-cells targeting multiple epitopes of the same antigen, they would be called "polyclonal antibodies." However, since the question focuses on identical B-cells targeting a single epitope, the correct term is monoclonal antibodies.

### Final Answer:
Antibodies produced by a group of identical B-cells against a single epitope of an antigen are called **monoclonal antibodies**.

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