Question

what is the effect of arsenic on human body​

Answer 1

Answer:

If arsenic poisoning occurs over a brief period of time symptoms may include vomiting, abdominal pain, encephalopathy, and watery diarrhea that contains blood. Long-term exposure can result in thickening of the skin, darker skin, abdominal pain, diarrhea, heart disease, numbness, and cancer.

Answer 2

Answer:

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The major support comes from short range electrostatic attractions between stacked bases. ... The stacking energy for pair M on N is determined from the equilibrium constant, SMN, for the stability of DNAs of defined neighbor composition.