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polytene chromosome

[pol-ee-teen] /ˈpɒl iˌtin/
noun, Genetics.
1.
a giant, cross-banded chromosome that results from multiple replication of its genetic material with the duplicated chromatin strands remaining closely associated.
Origin
1970-1975
1970-75; poly- + -tene
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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