ID #1343

What exactly does it mean to build tracks one at a time, does that mean that one dimer is added on at a time, or one protofilament is created at a time, or what?

No, in this case it means you make a MT of an appropriate length at the centrosome, release it, occupy both ends, and send it to the "end of the line" to be incorporated in the line of MTs that stabilize either an axon or a dendrite.

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