Cell division

Chromosomes

Responsible for movement of replicated chromosomes into two daughter cells during cell division.

centrioles

Helps in formation of spindle fibers.

Prophase (Mitosis)

Chromosomes condense

Nucleus

control center of the cell

Prophase (Mitosis)

Nuclear envelope disappears

Prophase (Mitosis)

Spindle fibers attaches to centromeres on the chromosome.

Metaphase

Chromosomes lined up on equator of the cell.

Metaphase (Mitosis)

Spindles at opposite ends of cell.

Anaphase (Mitosis)

Centromeres snaps

Anaphase (Mitosis)

1 copy of each chromosome is pulled into opposite poles by spindle.

Telophase (Mitosis)

Chromosomes de-condense

Telophase (Mitosis)

Nuclear envelope reappears

Telophase (Mitosis)

Cytoplasm divided into 2 cells

Prophase I (Meiosis)

The chromosomes condense and the nuclear envelope breaks down. Crossing over occurs

Metaphase I (Meiosis)

Pairs of homologous chromosomes move to the equator of the cell.

Anaphase I (Meiosis)

Homologous chromosomes move to opposite poled of the cell.

Telophase I (Meiosis)

Chromosomes gather at the poles of the cell and the cytoplasmic divides.

Prophase II

New spindle forms around the chromosomes.

Anaphase II

Centromeres divide.

Telophase II

A nuclear envelope forms around each set of chromosomes. The cytoplasm divides.