Bivalent
WordNet

adjective


(1)   Used of homologous chromosomes associated in pairs in synapsis
(2)   Having a valence of two or having two valences
WiktionaryText

Adjective


bivalent
  1. Having a valence of 2.
  2. Of, or relating to a pair of homologous synapsed chromosomes that occur during meiosis.
 
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