多线染色体
幼虫
昆虫
唾液腺
生物
DNA合成
动物
细胞生物学
DNA
分子生物学
遗传学
生物化学
植物
黑腹果蝇
基因
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:1964-11-20
卷期号:146 (3647): 1063-1063
被引量:47
标识
DOI:10.1126/science.146.3647.1063
摘要
A method for culturing the salivary glands of Sciara coprophila in a chemically defined medium has been developed. During a 24-hour period, the polytene chromosomes from six larval stages undergo normal developmental mental changes, including puff formation, puff condensation, and DNA synthesis.
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