Prophase II

Stages of Meiosis

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Prophase II
human karyotype colored
A human karyotype colored to show chromosome pairs (Full-size image)

Note: Meiosis II is very similar to mitosis.

Prophase II, the first step of meiosis II, begins with the two daughter cells produced by the first meiotic division (see figure right). As in prophase I, the chromosomes are condensed. During this stage of spermatogenesis, the cells are called secondary spermatocytes, or during oogenesis, secondary oocytes.

If there was an interkinesis, then the nuclear envelopes begin to break down again during this stage. The centrosomes have replicated and are moving toward the poles. Again, the chromosomes are not yet attached to the spindle apparatus, which is growing outward from the centrosomes.

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Prophase II