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What is hyperchromic shift

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The phenomenon of UV absorbance increasing as DNA is denatured is known as the hyperchromic shift. The purine and pyrimidine bases in DNA strongly absorb ultraviolet light. Double-stranded DNA absorbs less strongly than denatured DNA due to the stacking interactions between the bases. Single deoxynucleotides absorb more strongly than denatured DNA. DNA denaturation, also called DNA melting, is the process by which double-stranded deoxyribonucleic acid unwinds and separates into single-stranded strands through the breaking of hydrophobic stacking attractions between the bases. #hyperchromicShift #DNAMelting #aligonucleotide #pcr #gellElectrophoresis

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