synaptonemal complex
/sɪˌnaptə(ʊ)ˈniːm(ə)l
/ /sʌɪ-/noun Biology
A ladder-like series of parallel threads visible in electron microscopy adjacent to and coaxial with pairing chromosomes in meiosis.The nucleus reorganizes during this time, as sister chromosomes pair and the synaptonemal complex forms....
- In the absence of recombination, it has been suggested that the synaptonemal complex may assume this role in some organisms.
- The synaptonemal complex is present at this stage, and meiotic recombination is completed within this context.
Origin
1950s: from synapto- (combining form of synapsis) + Greek nēma 'thread' + -al.
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