STAGES OF MEIOSIS

Federoff

Interphase Chromosomes Duplicate Prepares to Divide

Prophase I Homologous Chromosomes pair up to form a

Tetrad Crossing-over Occurs

Metaphase I Homologous Chromosomes line up

across the center of the cell

Anaphase I Spindle fibers pull each Homologous

Chromosome pair toward opposite ends of the cell

Telophase I and Cytokinesis Telophase – Nuclear membrane reforms

around each cluster of chromosomes

Cytokinesis – Follows Telophase, forming two new cells

Prophase II Chromosomes (with 2 Chromatids)

become Visible

Metaphase II Chromosomes line up at the center of

the cell

Anaphase II Paired (Sister) Chromatids separate

Telophase II and Cytokinesis Telophase II – Nuclear membrane reforms Cytokinesis – 4 new genetically different,

haploid cells are produced