Question

Read the statements regarding muscle proteins. i. Actin is a thin filament and is made up of two $F$-actins, ii. The complex protein, tropomyosin is distributed at regular intervals on the troponin iii. Myosin is a thick filament which is also a polymerized protein iv. The globular head of meromyosin consists of light meromyosin $(LMM)$

• A. i, ii and iii are correct
• B. i, ii and iv are correct
• C. i and iii are correct
• D. ii and iv are correct

Answer 1

Answer: (C)

i and iii are correct

Answer 2

Tropomyosin is a double stranded a helical rod. It is fibrous molecule that attaches to F actin in the groove between its filament. The globular head of meromyosin consists of heavy meromyosin (HMM).