Match the columns :
`{:(,"Column A",,"Column B"),(A.,"Heavy Meromyosin",1.,"Thin filament"),(B.,"Light Meromyosin",2.,"Globular head of myosin"),(C.,"Actin",3.,"Tail of myosin"):}`

Options

A. A - 2, B - 3, C - 1
B. A - 2, B - 1, C - 3
C. A - 1, B - 3, C - 2
D. A - 1, B - 2, C - 3

Answer

To solve the matching question, we will analyze each item in Column A and find its corresponding match in Column B.

### Step-by-Step Solution:

1. **Identify Heavy Meromyosin**:
- Heavy meromyosin is a part of the myosin molecule that contains the globular head. This globular head is essential for muscle contraction as it interacts with actin filaments during the contraction process.
- **Match**: Heavy Meromyosin → Globular head of myosin (2)

2. **Identify Light Meromyosin**:
- Light meromyosin is the portion of the myosin molecule that forms the tail. It does not participate directly in the interaction with actin but is crucial for the structural integrity of the myosin filament.
- **Match**: Light Meromyosin → Tail of myosin (3)

3. **Identify Actin**:
- Actin is a protein that forms thin filaments in muscle fibers. It plays a critical role in muscle contraction by interacting with myosin.
- **Match**: Actin → Thin filament (1)

### Final Matches:
- A (Heavy Meromyosin) → 2 (Globular head of myosin)
- B (Light Meromyosin) → 3 (Tail of myosin)
- C (Actin) → 1 (Thin filament)

Thus, the correct matching is:
- A2, B3, C1