Match the following Columns:
`{:(" Column I", "column II"), (" A RNAi " , " I Cotton bollworms") , (" B ELISA " , " II Early detection of HIV " ) , ( " C PCR " , " III Meloidegyne resistance") , ( " D Cry IAb" , " V Corn borer " ):}`

Options

A. III IV II V
B. IV III I V
C. II III V IV
D. V I III II

Answer

To solve the matching question, we will analyze each item in Column I and match it with the appropriate item in Column II based on their functions or applications.

### Step-by-Step Solution:

1. **Identify RNAi (A)**:
- RNA interference (RNAi) is a biological process that involves the suppression of gene expression by double-stranded RNA.
- It is particularly effective against root knot nematodes, specifically Meloidogyne species, which are significant pests in crops like potatoes.
- **Match**: A (RNAi) → III (Meloidogyne resistance).

2. **Identify ELISA (B)**:
- ELISA stands for enzyme-linked immunosorbent assay, a technique used to detect and quantify substances such as proteins and antibodies.
- It is commonly used for the early detection of HIV by testing blood samples for specific antibodies produced in response to the virus.
- **Match**: B (ELISA) → II (Early detection of HIV).

3. **Identify PCR (C)**:
- PCR, or polymerase chain reaction, is a method used to amplify specific DNA sequences, allowing scientists to create millions of copies of a DNA sample.
- It is used in the identification of transgenic cotton that expresses Cry proteins, which are effective against cotton bollworms.
- **Match**: C (PCR) → I (Cotton bollworms).

4. **Identify Cry 1Ab (D)**:
- Cry 1Ab is a protein produced by Bacillus thuringiensis and is effective against specific insect pests, particularly the corn borer.
- **Match**: D (Cry 1Ab) → V (Corn borer).

### Final Matches:
- A (RNAi) → III (Meloidogyne resistance)
- B (ELISA) → II (Early detection of HIV)
- C (PCR) → I (Cotton bollworms)
- D (Cry 1Ab) → V (Corn borer)

### Summary of Matches:
- A - III
- B - II
- C - I
- D - V

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