Chapter 9b - Mitosis and Cytokinesis Flashcards
First stage of mitosis, during which the cell’s chromatin condenses into chromosomes
Prophase
Structure that contains identical DNA copies and is formed during DNA replication
Sister CHromatid
Cell structure that joins two sister chromatids
Centromere
Structure made of spindle fibers, centrioles, and asterfiers that is involved in moving and organizing chromosomes before the cell divides
Spindle Apparatus
Second stage of mitosis in which motor proteins pull sister chromatids to the cells equator
Metaphase
Third stage of mitosis in which sister chromatids are pulled apart and microtubules, along with motor proteins, move the chromosomes to opposite poles of the cell
Anaphase
Last stage of mitosis in which nucleoli reappear. Two new nuclear membranes begin to form, but the cell has not yet completely divided.
Telophase