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DictionarySeechromosomebivalent chromosome
bivalent chromosome[bī′vā·lənt ′krō·mə‚sōm] (cell and molecular biology) The structure formed following synapsis of a pair of homologous chromosomes from the zygotene stage of meiosis up to the beginning of anaphase. bivalent chromosome
bi·va·lent chro·mo·somea pair of chromosomes temporarily united.bi·va·lent chro·mo·some (bī-vā'lĕnt krō'mŏ-sōm) A pair of chromosomes temporarily united. bivalent chromosomeA double chromosome resulting from the conjugation of two homologous chromosomes in synapsis, which occurs during the first meiotic division.See also: chromosome |