The enzyme that is not produced in human albinism is

Options

A. 1)Phenyl alanine hydroxylase
B. 2)Tyrosinase
C. 3)Tyrosine kinase
D. 4)Protein Kinases

Answer

To solve the question regarding the enzyme that is not produced in human albinism, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Albinism**:
- Albinism is a genetic condition characterized by a deficiency in pigmentation, leading to little or no color in the skin, hair, and eyes.

2. **Identifying the Cause**:
- The primary cause of albinism is the deficiency of a specific enzyme that is crucial for the production of melanin, the pigment responsible for color in these tissues.

3. **Reviewing the Options**:
- The options provided are:
- A) Phenylalanine hydroxylase
- B) Tyrosinase
- C) Tyrosine kinase
- D) Protein kinases

4. **Analyzing Each Option**:
- **Phenylalanine hydroxylase**: This enzyme is involved in the metabolism of phenylalanine but is not related to melanin production.
- **Tyrosinase**: This is the key enzyme involved in the synthesis of melanin. Its deficiency leads to albinism.
- **Tyrosine kinase**: This enzyme is involved in signaling pathways and is not related to melanin production.
- **Protein kinases**: These enzymes are involved in various cellular processes but are not directly related to melanin synthesis.

5. **Conclusion**:
- The enzyme that is not produced or is deficient in individuals with human albinism is **tyrosinase**. Therefore, the correct answer is option B) Tyrosinase.

### Final Answer:
The enzyme that is not produced in human albinism is **tyrosinase** (Option B).