When performed antibodies against the antigen is infected to patient and immunity is acquired than type of immunity is :-

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the type of immunity acquired when antibodies against an antigen are introduced into a patient.

2. **Types of Immunity**: Immunity can be broadly classified into two categories:
- Innate Immunity: This is the natural immunity present from birth.
- Acquired Immunity: This immunity develops after birth and is further divided into two types:
- Adaptive Immunity: This is developed in response to exposure to foreign substances (antigens) or through vaccination.
- Passive Immunity: This is the immunity that is acquired when antibodies are transferred from one individual to another, either through natural means (like maternal antibodies) or through medical interventions (like antibody injections).

3. **Identifying the Correct Type**: The question specifies that antibodies are being introduced into the patient. This indicates that the patient is receiving antibodies directly, which is characteristic of passive immunity.

4. **Conclusion**: Therefore, the type of immunity acquired when performed antibodies against the antigen are infected into the patient is **Passive Immunity**.

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