Match the following Columns.
`{:(,"Column I",,,"Column II"),(A., "Gene therapy",,1.,"Effort to fix functional gene"),(B.,"Humulin",,2.,"A single - standard DNA or RNA tagged with a radioactive molecule"),(C.,"Probe",,3.,"Diagnostic test"),(D.,"ELISA",,4.,"Diabetes"):}`

Options

A. `{:(A,,B,,C,,D),(1,,4,,2,,3):} `
B. `{:(A,,B,,C,,D), (4,,2,,3,,1):} `
C. `{:(A,,B,,C,,D), (2,,3,,1,,4):} `
D. `{:(A,,B,,C,,D), (3,,1,,4,,2):} `

Answer

To solve the matching question, we need to analyze each term in Column I and find the corresponding statement in Column II. Let's go through each term step by step.

### Step-by-Step Solution:

1. **Gene Therapy (A)**:
- **Definition**: Gene therapy is a technique aimed at fixing or replacing dysfunctional genes to treat genetic disorders.
- **Match**: This corresponds to **1. Effort to fix functional gene**.
- **Conclusion**: A matches with 1.

2. **Humulin (B)**:
- **Definition**: Humulin is a form of insulin used to treat diabetes, specifically for patients whose bodies do not produce enough insulin.
- **Match**: This corresponds to **4. Diabetes**.
- **Conclusion**: B matches with 4.

3. **Probe (C)**:
- **Definition**: A probe is a single-stranded DNA or RNA molecule that is labeled with a radioactive molecule, used to detect specific sequences of nucleic acids.
- **Match**: This corresponds to **2. A single-standard DNA or RNA tagged with a radioactive molecule**.
- **Conclusion**: C matches with 2.

4. **ELISA (D)**:
- **Definition**: ELISA stands for Enzyme-Linked Immunosorbent Assay, a common laboratory technique used to detect and quantify proteins, often used as a diagnostic test.
- **Match**: This corresponds to **3. Diagnostic test**.
- **Conclusion**: D matches with 3.

### Final Matches:
- A → 1 (Gene therapy → Effort to fix functional gene)
- B → 4 (Humulin → Diabetes)
- C → 2 (Probe → A single-standard DNA or RNA tagged with a radioactive molecule)
- D → 3 (ELISA → Diagnostic test)

### Summary of Matches:
- A - 1
- B - 4
- C - 2
- D - 3