Biology · Cell Biology
Which statement is not correct about microtubules?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Microtubules are composed of polymers of the protein tubulin.
- 2The tubulin heterodimer consists of alpha and beta tubulin subunits.
- 3Microtubules are solid, unbranched cylinders with an outer diameter of 25 nm.✓
- 4A single microtubule consists of tubulin dimers arranged in columns called protofilaments.
Correct answer
Microtubules are solid, unbranched cylinders with an outer diameter of 25 nm.
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