Oogenesis

Arresting the division enables the egg to obtain all the resources it would possibly need. During the first arrest stage (diplotene stage of the first meiotic division), oocytes actively translate and transcribe. To support transcription, chromosomes too are decondensed as a result.

Again, at meiosis II, after the polar body I have formed, the oocyte gets arrested at metaphase II, waiting to meet the sperm in the fallopian tube and possibly complete meiosis II forming ovum and ultimately, the zygote.

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