polytene chromosome


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Related to polytene chromosome: lampbrush chromosome

polytene chromosome

[′päl·i‚tēn ′krō·mə‚sōm]
(genetics)
A giant, multistranded, chromosome produced by multiple sounds of endoreduplication and thus composed of many copies of the parental chromosome pair having their chromomeres in register. Also known as Balbiani chromosome.
References in periodicals archive ?
Polytene chromosomes and phylogenetic relationships of Chironomus atrella (Diptera: Chironomidae) in North America.