Dictionary of Human Evolution and Biology

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Dictyotene Stage

Prolonged diplotene stage during meiotic cell division, seen during oogenesis but not spermatogenesis. Chromosomes have completed crossing over but have not dissociated; chromosomes may remain in this stage of suspended animation for months or, as in humans and other long-lived species, even years. The probability of nondisjunction increases in proportion to the length of this stage.

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