Down stream processing includes the separation and purification fo

Options

A. transgenic organisms
B. genetically modified organisms from unmodified organsims
C. biomass of transgenic organsim
D. desirable cloned gene product of trasgenic organisms.

Answer

**Step-by-Step Solution:**

1. **Understanding Downstream Processing:**
- Downstream processing refers to the series of steps involved in the recovery and purification of biosynthetic products, particularly after the fermentation or biotechnological production of these products. It is crucial in biotechnology as it ensures that the desired product is obtained in a pure form.

2. **Identifying the Context:**
- In the context of genetically modified organisms (GMOs), downstream processing is typically the final step after the organism has been genetically modified to produce a specific product. This could include proteins, enzymes, or other valuable compounds.

3. **Analyzing the Options:**
- The question presents four options regarding what downstream processing includes:
- **Option 1:** Transgenic animals
- **Option 2:** Genetically modified organisms from unmodified organisms
- **Option 3:** Biomass of transgenic organisms
- **Option 4:** Desirable clone gene product of transgenic animals

4. **Evaluating Each Option:**
- **Option 1:** Transgenic animals are the source of the desired products but do not represent the downstream processing itself.
- **Option 2:** The process of selection of genetically modified organisms is not part of downstream processing.
- **Option 3:** Biomass refers to the total mass of organisms, which is not the focus of downstream processing.
- **Option 4:** The desirable clone gene product of transgenic animals is indeed what downstream processing aims to extract and purify.

5. **Conclusion:**
- Based on the analysis, the correct answer is **Option 4: Desirable clone gene product of transgenic animals**. This option accurately reflects the goal of downstream processing in biotechnology.