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The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as:

1. Microtubules
2. Microfilaments
3. Intermediate filaments
4. Lamins

Correct answer: Microfilaments

Solution

Microfilaments are the smallest cytoskeletal filaments, about 6–8 nm in diameter, and are composed of actin monomers. Microtubules are much larger, while intermediate filaments and lamins are thicker and structurally different.

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