The process include separation and purification of desirable protein is called__________

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term that describes the process of separating and purifying desirable proteins.

2. **Identifying the Process**: In biotechnology, the process that focuses on the recovery and purification of biosynthetic products, including proteins, is known as downstream processing.

3. **Explaining Downstream Processing**: Downstream processing involves several steps:
- **Removal of Insoluble Substances**: The first step is to eliminate any insoluble materials that may be present in the product.
- **Isolation of the Product**: After removing insoluble substances, the next step is to isolate the desired protein or product from the mixture.
- **Purification of the Product**: Once isolated, the product undergoes purification to ensure that it is free from contaminants and other unwanted substances.
- **Polishing of the Product**: The final step is polishing, which prepares the product for marketing and ensures it meets quality standards.

4. **Conclusion**: The correct term for the process that includes the separation and purification of desirable proteins is **downstream processing**.

**Final Answer**: Downstream processing

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