Microfilaments

question 44

Multiple Choice

Microfilaments

• A)are composed of eight protofilaments joined end to end with staggered overlaps.
• B)are composed of two helical strands of actin monomers oriented in the same direction.
• C)are composed of two helical antiparallel strands of actin monomers.
• D)are composed of α- and β-actin dimers.
• E)polymerize at the same rate from both ends of the filament.

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