<cell biology> Classic term for the second stage of the prophase of meiosis I, during which the homologous chromosomes start to pair. ... (18 Nov 1997) ... Found on http://www.encyclo.co.uk/local/20973
(zi´go-tēn) the second stage of prophase in meiosis I, during which homologous chromosomes begin to pair by the process of synapsis. Found on http://www.encyclo.co.uk/local/21001