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== Free-radical theory of aging == ...ical theory]] that explains the process of [[aging]] based on the activity of [[free radicals]] in the body.

'''DNA Damage (Naturally Occurring)''' ...'s ability to carry out its functions, including [[gene expression]] and [[DNA replication]].

== DNA Repair == ...c activities and environmental factors such as [[radiation]] can cause DNA damage, resulting in as many as 1 million individual molecular lesions per cell pe

...r]] mechanisms and has potential therapeutic applications in the treatment of [[cancer]]. ...e" is derived from its chemical structure. The "O6" refers to the position of the oxygen atom in the guanine molecule, while "benzyl" refers to the benzy