Deoxyribose Nucleic Acid (DNA) Paper

Effects of radiation on the dna sequence radiation

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Effects of Radiation on the DNA Sequence
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Radiation damages matter as it passes through it. In the case of DNA it can cause damages, such as changing in the nature of the bonding between atoms and electron excitation. The damage done by radiation to DNA occurs by two basic mechanisms. The first damage is mainly indirect, under this situation damage is mainly made to water molecules, and the foremost damage on DNA occurs by hydrogen atoms, hydroxyl radicals, and solvated electrons at several spots. The most substantial response of hydroxyl radicals is hydrogen withdrawal from deoxyribose moiety resulting in sequence breaking. The other mechanisms is the direct effect, which causes some of the atoms that make up the DNA molecules ionization, which then break up the chemical bonds within the strand of the DNA. Radiation can interact with the atoms, which consist of the DNA molecule itself (mnstate, n.d.). For example radiation can cause radiolytick decomposition of water molecules (H2O) into Hydrogen (H), and Hydroxyls (OH). These molecules are ionized meaning it wants to react with another substance. If for some reason the molecules reconnect back into water there has been no harm done. However if not it could react with surrounding molecules and cause damage to the DNA (mnstate, n.d.). Changes in DNA Becoming Cancerous Cancer is created if radiation does not destroy the cell but generates a fault in the DNA design, which contributes to the final loss of influence of cell division, and the cell starts dividing uncontrollably. Cancers caused by radiation do not vary from cancers due to other sources, in other words there is no reasonable method to assess the frequency of cancer due to radiation. Because cancers can arise at any moment in the exposed individual’s lifetime, these investigations can take several years to complete. Over a period, countless work was dedicated to
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research of irradiated species and exposed of individual’s to understand the assessments of the threat of cancer due to radiation (HSS, n.d.).
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