A band contain ……………. filaments while I contains ……………... filaments.

Explanation

To answer the question regarding the filaments contained in A bands and I bands, we can break down the solution into the following steps:

### Step-by-Step Solution:

1. **Understanding Muscle Fiber Structure**:
- Muscle fibers are organized into bands known as A bands and I bands. These bands are crucial for muscle contraction and are part of the sarcomere, which is the basic unit of muscle tissue.

2. **Identifying A Bands**:
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