44.
									
										Restriction fragment Length-polymorphism (RFLP) can only be used to follow the inheritance of a genetic disease if:
									
								
															
														
																									
										A:
											The disease causing mutation is at or closely linked to an altered restriction site 
									
																										
										B:
											Proteins of mutated and normal genes migrate differently upon gel electrophoresis 
									
																										
										C:
											Mutations are outside of restriction sites so that the cleaving still occurs 
									
																										
										D:
											Restriction fragments remain the same size but their charge changes
									
																								 
							
																
									The answer is:
										A
									
								
														
							
								
								
							
							
							
								