The spindle (spindle fibers)
A) function during mitosis to pull sister chromatids to opposite poles.
B) is composed of microtubules.
C) functions during meiosis I to pull the members of homologous pairs to opposite poles.
D) functions during meiosis II to pull the sister chromatids to opposite poles.
E) Consists of microtubules and functions in all of the ways listed in the other answer choices.

Question

Quizplus · Accepted Answer

The spindle fibers are composed of microtubules and play a crucial role in both mitosis and meiosis by ensuring that chromosomes are accurately divided and pulled to opposite poles of the cell. This includes pulling sister chromatids apart during mitosis and meiosis II, as well as separating homologous chromosomes during meiosis I.

The Spindle (Spindle Fibers)