AGB 121: Principles of Animal Genetics and Population Genetics (2+1)

DIPLOTENE STAGE

The diplotene stage, also known as diplonema. DNA recombination is complete. In this phase, the chromatids continue to shorten and thicken and the four sister chromatids in a group is called a tetrad. The synaptonemal complex begins to break down. The paired chromatids begin to pull apart, causing the strands to separate longitudinally in some areas to from loops. The chiasmata tend to slip toward the ends of the tetrads and then to become terminalised as the meiotic prophase continues.