Diplotene:

• The paired chromosomes repel each other and begin to separate.
• Separation however, is not completed, because homologous chromosomes remain united by their point of interchange (Chiasmata).Each bivalent has at least one each such, the chromatids otherwise are separated.

Diakinesis:

• During this phase the condensation of chromosomes reaches to its maximum.
• At the same time separation of the homologous chromosomes(started during diplotene)is completed,
• Nucleoli disappear.