Mitosis Glossary

Spindle fibers are aggregates of microtubules that move chromosomes during cell division.

Sister chromatids are two identical copies of a single chromosome that are connected by a centromere.

Microtubules are hollow rods, functioning primarily to help support and shape the cell.

Definition of the term centromere. A centromere is a region on a chromosome that joins two sister chromatids.

Definition of the term polar fibers.

Definition of the term kinetochore fibers.

Definition of the term kinetochore.

Definition of the term cell cycle.

Centrioles are cylindrical structures that are composed of groupings of microtubules. Centrioles are found in animal cells and play a role in cell...

A daughter chromosome is a chromosome that results from the separation of sister chromatids during cell division.

A chromatid is one-half of two identical copies of a replicated chromosome.

Asters are radial microtubule arrays found in animal cells.