streptomyces 链霉菌属
DESCRIPTION
Streptomyces 链霉菌属. Spontaneous mutations in E. coli (blue = - galactosidase activity. Antirrhinum, Snapdragon 龙头花 Somatic mutations are very frequent at low temperature because of a transposon jumping out of a flower color gene. Picture 400 230 pixels (small). LZW. - PowerPoint PPT PresentationTRANSCRIPT
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Streptomyces链霉菌属
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Spontaneous mutations in E. coli (blue = -galactosidase activity
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Antirrhinum, Snapdragon 龙头花Somatic mutations are very frequent at
low temperature because of a transposon
jumping out of a flower color gene
![Page 4: Streptomyces 链霉菌属](https://reader033.vdocuments.site/reader033/viewer/2022061404/56816755550346895ddc0caf/html5/thumbnails/4.jpg)
Picture 400230 pixels (small)
Tif 300 kb 70 kbLZW JPG medium quality 26 kb
High contrast shows JPG artifacts ‘dirty ‘ image
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Tif+LZW compression70 kb
PNG, automatic compression55 kb
Clean pictures without artifacts;
• pictures can be re-edited
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Gif (indexed colour)14 kbsharp lines, smallest files, bad for color gradients
JPG highest quality70 kblarge, almost clean file
For smallest clean line drawings:
avoid color gradients, save as Gif
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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
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