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Myosin filaments are localized in...

Myosin filaments are localized in

A

Z - Band

B

H-Band

C

A- Band

D

None of the above.

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Myosin Filaments**: Myosin filaments are a type of protein filament found in muscle cells. They play a crucial role in muscle contraction. 2. **Identifying the Structure of Muscle**: Muscle fibers are organized into units called sarcomeres. Each sarcomere contains different regions where myosin and actin filaments are located. 3. **Locating Myosin Filaments**: In the sarcomere, myosin filaments are primarily found in the A-band. The A-band is the region where myosin filaments are present, and it also includes overlapping regions with actin filaments. 4. **Understanding the H-band**: Within the A-band, there is a central region called the H-band (or H-zone), which contains only myosin filaments without any overlap from actin filaments. 5. **Conclusion**: Since the question asks where myosin filaments are localized, the correct answer is the A-band, as it encompasses the entire area where myosin is present. ### Final Answer: Myosin filaments are localized in the **A-band**. ---
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