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Streptomyces 链霉菌属 PowerPoint Presentation
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Streptomyces 链霉菌属

Streptomyces 链霉菌属

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Streptomyces 链霉菌属

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  1. Streptomyces 链霉菌属

  2. Spontaneous mutations in E. coli (blue = -galactosidase activity

  3. Antirrhinum, Snapdragon  龙头花 Somatic mutations are very frequent at low temperature because of a transposon jumping out of a flower color gene

  4. Picture 400230 pixels (small) LZW Tif 300 kb  70 kb JPG medium quality 26 kb High contrast shows JPG artifacts ‘dirty ‘ image

  5. Tif+LZW compression 70 kb • Clean pictures without artifacts; • pictures can be re-edited PNG, automatic compression 55 kb

  6. JPG highest quality 70 kb large, almost clean file For smallest clean line drawings: avoid color gradients, save as Gif Gif (indexed colour) 14 kb sharp lines, smallest files, bad for color gradients

  7. Jpg medium quality 25 kb dirty Tif+LZW 70 kb clean Gif 14 kb gradient artifact, clean lines JPG max. quality 70 kb clean, gradient OK