indirect and direct effects of radiation on dna

Direct effects of radiation. It is also the strongest output range.

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The ultraviolet radiation in sunlight has both positive and negative health effects.

. As the name suggests this range is visible to the naked eye. TEM analysis demonstrated that the toxic metal particles rich in Fe Zn Pb and Mn are usually nanometer in size and abundant in the atmosphere Li et al. There are both direct and indirect effects on health.

Visible range or light spans 380 to 700 nm. Indirect effects of radiation. The biological target of radiation in the cell is DNA Figure Figure1 1.

Are commonly called direct and indirect effects. Radiation act directly or indirectly on the cellular DNA. The indirect DNA damage caused by the free radicals is derived.

Radiation can directly interact with cellular DNA and cause damage Figure Figure2 2 A. Open in a separate window. UVA is now known to cause significant damage to DNA via indirect routes formation of free radicals and reactive oxygen species and can cause cancer.

Direct adverse effects include skin cancers cataracts and reactivation of some viral infections. Indirect effects include those resulting from changes in food quality see section 3 and disinfection of surface waters used for. Reactor Concepts Manual Biological Effects of Radiation USNRC Technical Training Center 9-4 0603 Damage To DNA From Ionization Direct Effect If radiation interacts with the at oms of the DNA molecule or some other cellular component critical to the survival of the cell it is referred to as a direct effect.

The best defined direct benefit is the synthesis of vitamin D. And found that soot and unknown fine particles were important components leading to a raised plasmid DNA damage. The hygroscopic behavior of atmospheric particles has a direct or indirect influence on their.

The interaction of two double-strand breaks may result in cell killing carcinogenesis or mutation Direct and indirect actions In direct action a secondary electron resulting from absorption of an x-ray photon interacts with the DNA to produce an effect with a high degree of chemical reactivity.

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