Mitosis Phases quizlet

Interphase

the cell replicates (doubles) its DNA and prepare for mitosis. the centrosome also divides.

Prophase

DNA condenses into individual distinct chromosomes; the nucleus (nuclear membrane) breaks down; centrosomes migrate to the poles, chromosomes are held together at the centromere, and the centrioles begin to form the spindle  

Metaphase

some spindle fibers attach to and organize the chromosomes to line up on the equator of the cell. some spindle fibers span the cell

Anaphase

spindle fibers attached to chromosomes shorten (by enzymes), pulling the chromosomes apart. other spindle fibers lengthen, pushing the poles apart/ elongating the cell.

Telophase

two new nuclei form, a cleavage furrow forms across the midline of the parent cell, pinching it in two

• in cell plants: cell plate

Cytokinesis

cells completely split; division of the cytoplasm. ends up with two separate daughter cells