38.
									
										The hyperchronic effect refer to:-
									
								
															
														
																									
										A:
											A change in the optical rotator dispersion (ORD) of a DNA solution upon heating.
									
																										
										B:
											 A maximum rate of denaturation versus temperature for duplex DNA. 
									
																										
										C:
											An increase in the absorbance of light at 260 mm when DNA-RNA hybrids are annealed 
									
																										
										D:
											An increase in the absorbance of light at 260 mm upon denaturation of DNA.
									
																								 
							
																
									The answer is:
										D