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Cleanup edit
This article was tagged for cleanup but I don't know what cleanup is being requested so I am removing the cleanup tag. RJFJR (talk) 15:05, 9 October 2011 (UTC)
Renovation edit
On April 2016 I renovated the article, organized sections and provided appropriate references. It would be good to obtain some image of light microscopy of a bivalent under creative commons license to illustrate the text (annotate centromere, chiasmata, homologs, chromatids etc...).
Definition edit
Is it correct, that bivalents have at least 1 cross over? According to Essential Cell Biology (Alberts et al.), they don't need to have a cross over. Can we have a citation for the defenition? Some of the earliest version from 2013 also stated that bivalents are just 2 chromosomes (4 chromatids) held together by a complex: nothing about any cross over? None of the later citated sources contain any actual definition of bivalents, they just mention them in a context to other subjects? Benj5378 (talk) 16:32, 23 January 2022 (UTC)