Anaphase: A stage of mitosis.
Centriole: A T-shaped structure, of unknown function, that marks the cell poles during mitosis and meiosis.
Centromere: Point of attachment between two chromatids; it is where the chromosome attaches to the spindle.
Chromatids: The two identical halves of a metaphase chromosome.
Chromatin: Genetic material in eukaryotic cell nuclei. It is composed of DNA and proteins, folded into specific conformations.
Chromosome: Bodies that carry the genetic information of a cell. Each chromosome is composed of one long molecule of DNA, wrapped around "beads" of proteins and then successively coiled or wound into very tightly packed structures prior to cell division.
Cytokinesis: Division of the cytoplasm.
Cytoplasm: All of the cell outside of the nucleus and inside the cell membrane including organelles and other components.
Daughter cells: Two cells resulting from the division of a cell.
DNA: Double-stranded polymer that serves as the genetic material.
Equatorial plane: Imaginary plane in a cell where chromosomes attach to the spindle; located approximately equal distance between poles of the cell.
Interphase: Phase of the cell cycle between successive cell divisions.
Mitosis: Division of the nucleus into two genetically identical nuclei.
Metaphase: A stage of mitosis.
Nucleolus: Dense, spherical region of the nucleus; site of rRNA synthesis.
Prophase: A stage of mitosis.
Spindle: A spherical basket-like structure in the cell made up of protein fibers assembled during prophase.
Telophase: A stage of mitosis.