The technique in biotechnology that aims at using readioactive called probes , to find their corresponding molecules in tissues where presence of virus or mutations is suspected is known as :

Options

A. Molecular harvesting
B. Molecular diagnosis
C. Biowar
D. Upstream processing

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a specific biotechnology technique that utilizes radioactive probes to identify corresponding molecules in tissues suspected of containing viruses or mutations.

2. **Identifying Relevant Techniques**: In biotechnology, there are various techniques used for different purposes. The question hints at a technique that involves the use of radioactive materials, which suggests a focus on molecular diagnostics rather than other processes like upstream or downstream processing.

3. **Defining Upstream and Downstream Processing**:
- **Upstream Processing**: This involves the growth of biomolecules, such as proteins or cells, in bioreactors. It does not involve the use of radioactive probes.
- **Downstream Processing**: This refers to the purification and recovery of the biomolecules after they have been produced. Again, this does not involve radioactive probes.

4. **Exploring Molecular Diagnosis**: The relevant technique here is **molecular diagnosis**, which encompasses various processes, including molecular imaging. This technique uses radioactive probes to detect specific molecules within tissues, especially where there is suspicion of viral infection or genetic mutations.

5. **Conclusion**: Based on the understanding of the techniques and their applications, the correct answer to the question is **molecular diagnosis**.

**Final Answer**: The technique in biotechnology that aims at using radioactive probes to find their corresponding molecules in tissues where the presence of virus or mutations is suspected is known as **molecular diagnosis**.

---