`{:(,"Column I",,"Column II"),(I.,"DNA probe",(A),"Effort to fix the functional gene"),(II.,"DNA library",(B),"DNA sequence that can pair with a particular gene"),(III.,"Gene therapy",(C),"One organism's DNA stored in the host organism"),(IV.,"200,000 varieties of rice",(D),"India"):}`

Options

A. I - B, II - A, III - D, IV - C
B. I - B, II - A, III - C, IV - D
C. I - B, II - C, III - A, IV - D
D. I - D, II - A, III - B, IV - C

Answer

To solve the matching question between Column I and Column II, we will analyze each term in Column I and match it with the correct description in Column II.

### Step-by-Step Solution:

1. **Identify the terms in Column I**:
- I. DNA Probe
- II. DNA Library
- III. Gene Therapy
- IV. 200,000 varieties of rice

2. **Analyze the descriptions in Column II**:
- A. Effort to fix the functional gene
- B. DNA sequence that can pair with a particular gene
- C. One organism's DNA stored in the host organism
- D. India

3. **Match each term with the correct description**:
- **I. DNA Probe**: A DNA probe is a DNA sequence that can pair with a particular gene. This is because DNA probes are designed to bind to specific sequences of DNA, making option B the correct match.
- **Match**: I - B

- **II. DNA Library**: A DNA library is a collection of DNA sequences that can be stored and manipulated. It involves storing one organism's DNA in a host organism, which corresponds to option C.
- **Match**: II - C

- **III. Gene Therapy**: Gene therapy involves efforts to fix or replace defective genes with functional ones. This aligns with option A, which describes the effort to fix the functional gene.
- **Match**: III - A

- **IV. 200,000 varieties of rice**: This refers to the biodiversity of rice varieties found in India. Therefore, the correct match is option D, which indicates India.
- **Match**: IV - D

4. **Final Matching**:
- I - B
- II - C
- III - A
- IV - D

### Summary of Matches:
- I. DNA Probe → B. DNA sequence that can pair with a particular gene
- II. DNA Library → C. One organism's DNA stored in the host organism
- III. Gene Therapy → A. Effort to fix the functional gene
- IV. 200,000 varieties of rice → D. India