TEMs of Kleinschmidt preparations showing: (a) circular DNA of OX 174RF 21S; (b) molecular complexes resulting from the reaction of this DNA with E. coli RNA polymerase upon addition of the four regular nucleoside triphosphates: ATP, CTP, GTP, UTP. After fifteen minutes at room temperature, characteristic convolutes formed by filaments of varying widths are found in close association with the DNA-enzyme complex.
px | px | dpi | = | cm | x | cm | = | MB |
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Creative#:
TOP22220800
Source:
達志影像
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RM
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須由TPG 完整授權
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N/A
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