ADA is an enzyme which is deficient in a genetic disorder SCID. What is the full form of ADA?

Options

A. Adenosine Deoxy Aminase
B. Adenosine Deaminase
C. Aspartate Deaminase
D. Arginine Deaminase

Answer

To answer the question about the full form of ADA, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Context**: The question mentions ADA as an enzyme related to a genetic disorder known as SCID. This gives us a clue that we are looking for a specific enzyme associated with immune function.

2. **Recall the Options Provided**: The options given are:
- a) adenosine deoxyaminase
- b) adenosine deaminase
- c) aspartate deaminase
- d) arginine deaminase

3. **Understand the Function of ADA**: ADA stands for an enzyme that plays a crucial role in the immune system by breaking down adenosine, which is important for maintaining immune function.

4. **Select the Correct Full Form**: Among the options, the correct full form of ADA is "adenosine deaminase." This is the enzyme that is deficient in individuals with SCID, leading to severe combined immunodeficiency.

5. **Conclusion**: Therefore, the full form of ADA is **adenosine deaminase**.