Kinetochore vs Nonkinetochore Microtubules: Key Differences in Mitosis
Kinetochore microtubules grip chromosomes at centromeres; nonkinetochore microtubules push and pull spindle poles, never touching DNA. Students see “-kineto-” and picture movement, forgetting that only one set actually moves chromosomes. The similar names and overlapping appearance in textbook diagrams blur the line, so people lump them together under “spindle fibers” and lose the functional split….