AP BIOLOGY

Detailed explanation-1: -Prophase II is the phase that follows after meiosis I, or after interkinesis if present. If interkinesis takes place, the nuclear envelope and the nucleolus disintegrate during prophase II. The chromosomes are condensed. The centrosome s replicate and move towards the opposite poles.

Detailed explanation-2: -During prophase II, chromosomes condense and the nuclear envelope breaks down, if needed. The centrosomes move apart, the spindle forms between them, and the spindle microtubules begin to capture chromosomes.

Detailed explanation-3: -During prophase II of meiosis, the chromosomes condense again and the nuclear envelope breaks down once more. The centrosomes move towards the poles of the cell and spindle fibers form. Homologous chromosomes are not present during prophase II of meiosis, as they have been separated during metaphase I.

Detailed explanation-4: -Meiotic prophase I is subdivided into five stages: leptotene, zygotene, pachytene, diplotene, and diakinesis.

Detailed explanation-5: -The main events of prophase are: the condensation of chromosomes, the movement of the centrosomes, the formation of the mitotic spindle, and the beginning of nucleoli break down.