DNA topoisomerase, molecular model. Topoisomerases are enzymes responsible for changes in the topology of DNA molecules that are necessary in overwin

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DNA topoisomerase, molecular model. Topoisomerases are enzymes responsible for changes in the topology of DNA molecules that are necessary in overwinding or underwinding of DNA.

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Keywords: 2736, astronomical, astronomy, cosmology, death, dust, expanding, gas, glowing, hst, hubble, impact, line, nebula, ngc, optical, pencil, remnant, science, shell, snr, space, star, stellar, straight, supernova, universe, vela