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collochore

noun
col·​lo·​chore | \ ˈkäləˌkō(ə)r\
plural -s

Definition of collochore

: a specialized segment of certain chromosomes that functions like a chiasma in bivalent formation and is thought to be lacking in genes and comparable to a centromere

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History and Etymology for collochore

coll- + Greek chōros place

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