Question

At which end do kinetochore microtubules shorten during anaphase? Explain the data that supports where this shortening occurs.

Answer 1

During anaphase, kinetochore microtubules shorten at their disassembly ends. They provide the force that separates sister chromatids and pull the chromosomes toward opposite poles of the cell.

Step-by-step explanation:

During anaphase, kinetochore microtubules shorten at their disassembly ends. These microtubules are attached to the kinetochores of sister chromatids and provide the force that separates them. The shortening of these microtubules pulls the chromosomes toward opposite poles of the cell. Non-kinetochore microtubules, on the other hand, lengthen the cell.