Q. Each tropomyosin is associated with _______ subunits of actin subunits.

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Q. Troponin is composed of _____ subunits.

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Q. Titin is the largest protein discovered till date.

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Q. Which of the following prevents sacromeres from pulling apart during muscle stretching?

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Q. Cortex (of a cell) is located beneath the _____________

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Q. Which type of cytoskeletal elements are involved in nonmuscle motility?

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Q. Nucleation is the slowest step in actin filament formation.

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Q. Which of the following nucleating protein generates unbranched actin filaments?

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Q. Which of the following binds to G-actin?

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Q. Monomer-sequestering proteins are responsible for high concentration of G-actin in nonmuscle cells.

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Q. Tropomodulin is a ___________

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Q. Which of the following has an opposing role as that of thymosin?

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Q. Which of the following can fragment actin filaments?

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Q. Filamin is an example of ___________ proteins.

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Q. Cross-linking proteins villin and fimbrin are found in ___________

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Q. The protein responsible for muscular dystrophy, dystrophin, is a __________ protein.

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Q. An organism in which cell motility takes place solely as a result of actin polymerization is ____________________

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Q. ActA, a surface protein activates the ______________

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Q. Lamellipodium is a protrusion of ________________

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Q. The Wiskott-Aldrich syndrome is caused due the lack of functional ____________ protein.

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