Long protein fibers called microtubules extend from the centrioles in all possible directions, forming what is called a spindle. Some of the microtubules attach the poles to the chromosomes by ...

Prometaphase: During this phase, the spindle fibers formed between the centrosomes and the newly made microtubules attach to the kinetochore of each chromosome. Encourage students to modify their ...

The length of these kinetochore-attached microtubules then decreases during mitosis, pulling sister chromatids to opposite poles of the spindle. Other spindle fibers do not attach to chromosomes ...

During cell division, mitotic spindles segregate duplicated chromosomes with high fidelity. Spindle structure depends on the proper polar organization of microtubules, which have biochemically ...

For a living cell to divide successfully, each daughter cell must inherit the correct genetic material. In eukaryotes, segregation of duplicated chromosomes is performed by the mitotic spindle, a ...