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Which protein runs alongside the actin filaments throughout their length?
Amyosin
Bmeromyosin
Ccollagen
Dtropomyosin
Answer & Solution
Correct answer: D. tropomyosin
1. The thin filament is not made of actin alone.
2. Two filaments of another protein run close to the F actins throughout their length.
3. That protein is tropomyosin.
4. Troponin is distributed at regular intervals on the tropomyosin.
_Source: NCERT Class 11 Biology Ch17 'Locomotion and Movement'_
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