Which of the following is true about the structure of the microtubule wall? alph

Question

Which of the following is true about the structure of the microtubule wall? alpha -beta-tubulin heterodimers are arranged with mixed orientation in each protofilament, and protofilaments are arranged with same polarity in the microtubule wall. alpha-beta-tubulin heterodimers are arranged with mixed orientation in each protofilament, and protofilaments are arranged with mixed polarity in the microtubule wall. alpha-beta-tubulin heterodimers are arranged with the same orientation in each protofilament, and protofilaments are arranged with same polarity in the microtubule wall. alpha-beta-tubulin heterodimers are arranged with the same orientation in each protofilament, and protofilaments are arranged with mixed polarity in the microtubule wall. Orientation of the alpha-beta-tubulin heterodimers is completely random and depends on which end of the dimer first hits the end of the microtubule when it assembles.

Explanation / Answer

Ans). alpha,beta-tubulin heterodimer are arranged with the same orientation in each protofilament, and protofilaments are arranged with same polarity in the microtubule wall.

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