Science Source Feb 2010
EN_90286490_0628
![Science Source Feb 2010](img/medium/arch1/dvd0113/34/EN_90286490_0628.jpg)
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.
2010-02-13
EAST NEWS
Science Source
Omikron
9n1673
4,11MB
23cm x 33cm by 300dpi
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