Spindle microtubules that extend from the two poles of a dividing cell are called ___

Spindle microtubules that extend from the two poles of a dividing cell are called kinetochore microtubules. These microtubules attach to the kinetochores on the chromosomes and play a critical role in ensuring that chromosomes are properly divided and distributed to the daughter cells during cell division. In addition to kinetochore microtubules, there are also polar microtubules that help to push the spindle poles apart and astral microtubules that anchor the spindle apparatus to the cell membrane. Together, these structures are essential for the proper segregation of genetic material during mitosis and meiosis.