Question

Which of the following statements best explains the hyperchromatism of DNA? (select one) 

a. the shift of UV absorption to longer wavelengths during denaturation 

b. increase in absorbance at 260 nm after complementary chain coupling and double chain formation 

c. the shift of UV absorption to longer wavelengths after complementary connection of the two chains 

d. the shift of UV absorption to shorter wavelengths during hydrolysis 

e. increase in absorbance at 260 nm after denaturation and chain separation 

Answer 1

Option (A)....the shift of UV absorption to longer wavelengths during denaturation