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| Description: The micrograph shows metaphase chromosomes from Chinese hamster ovary cells that are highly resistant to methotrexate. Chromosomal DNA was subjected to hybridization in situ with a fluorescence-labeled DHFR gene probe. White arrows point to single-copy genes. The amplified chromosomal sequences are on a giant form of the chromosome that also contains one of the original single-copy sequences. Picture Stats: Views: 376 Filesize: 15.65kB Height: 330 Width: 153 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=35027 |