英语词汇“polytene chromosome”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	polytene chromosome
释义	DictionarySeepolytene polytene 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. polytene chromosome pol·y·tene chro·mo·some a stage of chromosome division that forms the giant chromosome found in the salivary gland of dipterous insects; the great width is the result of repeated divisions of the chromonema without subsequent lengthwise separation of the filaments. Synonym(s): giant chromosome (1) polytene chromosome see SALIVARY GLAND CHROMOSOME.
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polytene chromosome